Negates the meaning of the modified verb. / To no degree. / (understatement, litotes) Used to indicate the opposite or near opposite, often in a form of understatement.

And not.

(slang) Used to indicate that the previous phrase was meant sarcastically or ironically.

Alternative letter-case form of NOT

A mark or token by which a thing may be known; a visible sign; a character; a distinctive mark or feature; a characteristic quality.

(transitive) To notice with care; to observe; to remark; to heed. / (transitive) To record in writing; to make a memorandum of. / (transitive) To denote; to designate. / (transitive) To annotate.

(uncountable, UK dialectal, Northern England, Ireland, Scotland) That which is needed or necessary; business; duty; work.

None at all.

Introduces or constitutes a more emphatic negation or exclusion than "not".

(colloquial) Used to express strong disappointment or disapproval.