Definitions from Wiktionary ( )

▸ adverb:  Negates the meaning of the modified verb.
▸ adverb:  To no degree.
▸ adverb:  (litotes) Used to indicate the opposite or near opposite, often in a form of understatement.
▸ adverb:  Used before a determiner phrase, a pronominal phrase etc. to convey a negative attitude (e.g. denial, sadness, anger) towards something.
▸ adverb:  (ironic, informal, originally African-American Vernacular) Used before a non-finite clause (especially a gerund-participial clause) or less commonly a determiner phrase to ironically convey some attitude (e.g. surprise, incredulity, amusement, embarrassment) towards something.
▸ noun:  An instance of using the word “not”; a negation or denial.
▸ noun:  (mathematics, logic) A unary operation on logical values that changes true to false, and false to true.
▸ noun:  Alternative letter-case form of NOT (“unary operation on logical values that changes true to false, and false to true”). [(mathematics, logic) A unary operation on logical values that changes true to false, and false to true.]
▸ noun:  (Egyptian mythology) Alternative spelling of Nut. [(Egyptian mythology) The goddess who serves as the personification of the sky.]

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