It really depends. If this is purely English, then it may just use the English 's' plural ending. If, however, it is Latin-derived, it is then most likely going to end in -ae (which is the Latin first-declension plural ending).
Some examples of plural nouns not ending with 's' are children, men, women, mice, and geese.
Some examples of plural nouns ending in "s" include books, dogs, cats, cars, and trees.
Genus has the plural genera.
Some nouns ending in -is are made plural by changing the ending to -es; examples:axis - axesbasis - basescrisis - crisesdiagnosis - diagnosesellipsis - ellipsesSome nouns ending in -is are regular plurals adding the ending -es to the end of the word; examples:iris - irisesmantis - mantisesmetropolis - metropolisespelvis - pelvisestrellis - trellises
Some plural nouns that end with 'os' are:avocadosbanjosbarriosbongosechosegosflamingosghettosgigoloshaloshobosJellokangaroolassologosnachospatiosphotospianospiccolosradiosrhinossolosstudiostacostattoostriosvideoszeroszoos
Some examples of plural nouns not ending with 's' are children, men, women, mice, and geese.
Some examples of plural nouns ending in "s" include books, dogs, cats, cars, and trees.
Genus has the plural genera.
Some nouns ending in -is are made plural by changing the ending to -es; examples:axis - axesbasis - basescrisis - crisesdiagnosis - diagnosesellipsis - ellipsesSome nouns ending in -is are regular plurals adding the ending -es to the end of the word; examples:iris - irisesmantis - mantisesmetropolis - metropolisespelvis - pelvisestrellis - trellises
No, nouns ending in 's' are not always plural; some examples are:abacusabyssaddressasparagusbassbiasbonusbuscactuscallouscampuscircusclasscompasscosmosdaisdiabetesdiscusdressemphasisethosficusfocusfungusgasgeniusglassgrasshaggishepatitishiatushibiscushippopotamushummusibisisthmuskisslasslenslossmantismessmetropolismolassesmossnemesisnexusnucleusoasisoctopusonusosmosispantsparenthesispasspelvisphysicsplatypuspluspressprogresspusradiusrhesusruckussassafrassisstatusstratusstresssuccesssurplussynopsistennisTexastrellistrussviruswalruswatercresswellnesswitnessyes
Some plural nouns that end with 'os' are:avocadosbanjosbarriosbongosechosegosflamingosghettosgigoloshaloshobosJellokangaroolassologosnachospatiosphotospianospiccolosradiosrhinossolosstudiostacostattoostriosvideoszeroszoos
The plural of "alumina" is "aluminae." This follows the pattern of some irregular nouns that derive from Latin, where the ending "-a" changes to "-ae" in the plural form.
Pianos Cellos Piccolos
In Greek, singular nouns can be changed to plural by altering the word ending. Different rules apply based on the noun's gender and ending. Some common plural endings for nouns are -οι, -ι, and -α. It is important to learn the specific patterns for each noun type.
Try writing this question in English. Most plural nouns do end in s. Perhaps you mean that you want a list of nouns that end in s but are not plural.
The plural is valleys.Unlike nouns ending in -y (ally, spy), English nouns ending in -ay or -ey form regular S plurals.
Examples of compound nouns ending in -in and -on; and their plural forms:afternoon; afternoonsbackspin; backspinsbandwagon; bandwagonsgrandson; grandsonshoneymoon; honeymoonssheepskin; sheepskinssnakeskin; snakeskinstablespoon; tablespoonstailspin; tailspinswatermelon; watermelons