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There isn't a really adequate answer to that. None of the unusual words - like "supercalifragilisticexpialidocious" or "Floccinaucinihilipilification" count, as they are used often enough as examples.
Literally the least used would be one that was used not at all, and there are thousands of examples of those.
The field in which they would come from would be some obscure branch of taxonomic science, where it was the latinate name for some rare bug or plant that no one cares about. Or some chemical compound with no application.
If one wishes more pure English, and not simply some rare scientific term, one would look amongst the obsolete words that we no longer use, such as "abatude", in which one cuts a portion of a coin out, thus devaluing it.
If one is wanting the least used word that is not scientific or obsolete, and further, still actually used, then you would still be out of luck, because there would be thousands of ties for least used. And really, no meaningful way of determining which is "the" least used.
One study ranked the most commonly used words, and at number 86,800 was "conquistador". However, there are several hundred thousand other words that weren't listed.
Myself, I would offer - with no proof - the word "cwm". Pronounced "koom", it means "from the valley". The only time I'm aware of it being used is in a holoalphabetic sentence that most people don't bother with. "Quartz glyph job vex'd cwm finks." contains every letter of the alphabet once and only once.
So that word is used, but is certainly amongst the "least used". Perhaps it might be fairest to say that I offer that as "the word that is least used amongst words that are still used."
What else can I help you with?
What is the spanish translation for the English word language?
There are various translations of the word "language" from English to Spanish. Commonly, the Spanish word "lengua" is used. "Lenguaje" is also appropriate, as is "idioma."
How is the word 'this' used in the English Language?
The word 'this' is a demonstrative pronoun that is used to refer to something that is close or immediate in proximity or time. It can also be used as a determiner before a noun to indicate a specific object or person.
Is soonest a word in the English language?
Yes, "soonest" is a word in the English language. It is an adverb that means in the shortest time from now or earliest after the present.
What does the Italian word vino represent?
The Italian word Vino represents the word wine in the English language. The word is a masculine singular noun. It is an Italian word used in the Italian language.
Is smarticale a word?
It is a word, it is a created thing that people use and have a general idea of, but it is not a proper word. You will not find it in the dictionary, it is used in place of the word smart, at least as I have heard it used among teens. Language changes all the time, use it enough and maybe they will add it.
Is zihoul a word?
No, at least not in the English language.
What does the word hapua mean in English?
The word hapua is used in the Maori language. This word translates into the English language as the word lagoon.
What is the most frequently used word in the English language?
The most commonly used word in English is the word 'the'.
What is the spanish translation for the English word language?
There are various translations of the word "language" from English to Spanish. Commonly, the Spanish word "lengua" is used. "Lenguaje" is also appropriate, as is "idioma."
What is the longest word in the English language that does not contain the letters a e i o you?
If 'you' meant the letter 'u', then there is none in the English language. It is a cardinal rule of English to have at least one vowel per word. Also, it is at least almost impossible to finisha syllable without a vowel.
What does taon mean?
The word taon is used in the Filipino language. The word taon translates into the English language as the word year.
How do you say the word English in Twi?
In Twi, the word "English" is translated as "Borɔfo." It is used to refer to the English language in conversation.
Are there syllables in the word Christ?
Yes, the word "Christ" has one syllable. Every word in the English Language has at least one syllable.
What is a Spanish word that is also used in English Language?
doctor
Is the word fishes still used in English language?
Yes.
How can you use Ennoble in a sentence?
You cannot because it is not a word in the English language, at least in the way you misspelled it.
What is another word for "she" in the English language?
Another word for "she" in the English language is "her."
