The plural of no is noes or nos.
(Noun) A negative answer, a denial or an utterance of the word 'no'.
The word no is usually used as an adverb or adjective, such as when used to imply non-existence (not any) or when diasgreeing with a statement.
The word no can also be used as a noun when referring to its usage in speech or writing. For example when asked to vote on an issue, if 4 people refuse then the number of negative responses can be counted.
When used as a noun, the word no does have a plural.
According to the Merriam-Webster definition, the plural of no is noes or nos.
Singular Example: When asked if he were to continue the course he responded with a clear no.
Plural Example: After all the votes were counted the results were unambiguous: 17 noes and 3 abstentions.
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