adjective
Definition: This word means not a single one or not any at all.
Example: There were none left after the sale.
adverb
Definition: Not at all; in no way or to no extent.
Example: She was none too pleased with the results of the test.
noun
Definition: A term used to indicate the absence of anything or not one of a group.
Example: When asked how many cookies were left, she said there were none.
pronoun
Definition: This word is used to indicate that there is not a single person or thing; it means zero or no one.
Example: None of the cookies were left after the party.