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It depends. Most of the time, you pluralise these words in exactly the same way you pluralise any other word ending in s. You add “es”. This is true for focuses, buses, pluses, minuses, and most other words. However, there are exceptions. Words that come from latin, such as stimulus, nucleus, and radius, still act as they did in latin. That is, they end in “-i”: stimuli, nuclei, radii. For some words (such as radius) it may be acceptable to use an “-es” ending for these in semi-formal contexts. Even to that rule there is at least one. Virus is a Latin word ending in “us”. It is pluralised as “viruses” and not as “viri” as you would expect a Latin word to be. This is because, as far as we know, the word virus had no plural in the Latin language. “Viri” meant “men”; and “virus” was treated in Latin as a mass noun (like “happiness”) which don’t, in standard usage, take a plural form.

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โˆ™ 2008-12-06 03:12:22
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Q: How do you make words ending in us into plural?
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What is the plural form of nouns ending in us?

There is no absolute rule here. Words derived from Latin and ending in -us often keep -i endings derived from Latin--alumnus, alumni--but these tend to disappear over time (think alums). Words without such origins follow the normal rules for words ending in -s--e.g., bus, busses.


Can you give me a example of plural words?

A plural noun is a word for more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. The plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of dayis days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the different rule of pluralization of noun?

A plural noun names more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. The plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the rules in writing the plural form of nouns?

A plural noun is a word for two or more people, places, or things. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s or es to the end of the word. These are called regular plurals (or regular nouns). Example: the plural of neighbor is neighbors, the plural of flower is flowers.Nouns that form their plural in some other way are called irregular plural (or irregular nouns). Example: the plural of child is children, the plural of foot is feet.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the 30 rules for forming plural nouns?

A plural noun is a word for two or more people, places, or things. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s or es to the end of the word. These are called regular plurals (or regular nouns). Example: the plural of neighbor is neighbors, the plural of flower is flowers.Nouns that form their plural in some other way are called irregular plural (or irregular nouns). Example: the plural of child is children, the plural of foot is feet.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.

Related questions

If a word end with an s how do you make it plural?

You usually add "-es. Many Latin-origin words ending in -us form plurals by changing -us to -i.


Nouns ending in -us with plural era?

Genus has the plural genera.


Why stimuli is plural and stimulus is singular?

Because "stimulus" is a Latin word. In Latin, most words ending in "-us" form the plural in "i". They keep this in English.


What is the plural for grass and hippopotamus?

Grasses (This refers to different varieties of the plant. For example, rye and Bermuda are two different grasses.) Hippopotami (Almost all words ending in -us are from the Latin, and that singular ending transforms to an -i in the plural.)


What is the plural form of nouns ending in us?

There is no absolute rule here. Words derived from Latin and ending in -us often keep -i endings derived from Latin--alumnus, alumni--but these tend to disappear over time (think alums). Words without such origins follow the normal rules for words ending in -s--e.g., bus, busses.


Does every word ending in -us change to an -i ending when changed to plural?

no ex. one bus, two buses


Two letter words ending in s?

Is, us, and as are two letter words ending in s.


Plural words that end us that turn to?

It's very confusing, but for nouns of Latin origin ending in 'us', you change the 'us' to 'i', 'era', 'ora' or 'es'. For example:syllabus > syllabi (modern usage - syllabuses)genus > generacorpus > corpora (modern usage - corpuses)census > censusesA good dictionary is an excellent resource to have when looking up the plural of words.


Can you give me a example of plural words?

A plural noun is a word for more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. The plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of dayis days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the different rule of pluralization of noun?

A plural noun names more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. The plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the rules in writing the plural form of nouns?

A plural noun is a word for two or more people, places, or things. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s or es to the end of the word. These are called regular plurals (or regular nouns). Example: the plural of neighbor is neighbors, the plural of flower is flowers.Nouns that form their plural in some other way are called irregular plural (or irregular nouns). Example: the plural of child is children, the plural of foot is feet.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.


What are the rules in forming the plural of singular nouns?

A plural noun is a word for two or more people, places, or things. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s or es to the end of the word. These are called regular plurals (or regular nouns). Example: the plural of neighbor is neighbors, the plural of flower is flowers.Nouns that form their plural in some other way are called irregular plural (or irregular nouns). Example: the plural of child is children, the plural of foot is feet.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of day is days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.

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