[not] /nɒt/

(used to express negation, denial, refusal, or prohibition):
You must not do that. It’s not far from here.
U.S. Slang. (used jocularly as a postpositive interjection to indicate that a previous statement is untrue):
I just love working overtime without pay. Not!
not so much, Informal. (an expression of dismissive scorn, ambivalence, or skepticism): Attractive? Yes. Smart? Not so much.
Is the world coming to an end? Yeah, not so much.
[not] /nɒt/
a Boolean operator that returns a positive result if its operand is negative and a negative result if its operand is positive.
variant of before a vowel.

(conjunction) not that, which is not to say or suppose that: I expect to lose the game — not that I mind Also (archaic) not but what
sentence substitute
used to indicate denial, negation, or refusal: certainly not
combining form
a variant of noto-

negative particle, mid-13c., unstressed variant of noht, naht “in no way” (see naught). As an interjection to negate what was said before or reveal it as sarcasm, it is first attested 1900; popularized 1989 by “Wayne’s World” sketches on “Saturday Night Live” TV show. To not know X from Y (one’s ass from one’s elbow, shit from Shinola, etc.) was a construction first attested c.1930. Double negative construction not un- was derided by Orwell, but is persistent and ancient in English, popular with Milton and the Anglo-Saxon poets.


What has just been stated is emphatically not true: Millions of animals in experimental labs die annually. Shock value? NOT!/ Hooray for Pat Buchanan, not!/ Dan Quayle has already filmed a commercial declaring Murphy Brown his favorite show …”not” (1990s+)

The Boolean function which is true only if its input is false. Its truth table is:
A | NOT A –+———- F | T T | F


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  • NOTA

    1. none of the above. [noh-tuh m] /ˈnoʊ təm/ noun, plural nota [noh-tuh] /ˈnoʊ tə/ (Show IPA) 1. a dorsal plate or sclerite of the thorax of an insect. [noh-tah be-ne; English noh-tuh bey-nee, ben-ee, bee-nee] /ˈnoʊ tɑ ˈbɛ nɛ; English ˈnoʊ tə ˈbeɪ ni, ˈbɛn i, ˈbi ni/ Latin. 1. note well; take notice. […]

  • Not a bad sort

    see: bad sort

  • Nota-bene

    [noh-tah be-ne; English noh-tuh bey-nee, ben-ee, bee-nee] /ˈnoʊ tɑ ˈbɛ nɛ; English ˈnoʊ tə ˈbeɪ ni, ˈbɛn i, ˈbi ni/ Latin. 1. note well; take notice. /ˈnəʊtə ˈbiːnɪ/ uknown 1. note well; take note Abbreviation NB, N.B., nb, n.b. “mark well, observe particularly,” c.1721, from Latin nota, second person singular imperative of notare “to mark” […]

  • Notabilia

    [noh-tuh-bil-ee-uh] /ˌnoʊ təˈbɪl i ə/ plural noun 1. matters, events, or items worthy of note. n. “notable things,” from Latin notabilia, neuter plural of notabilis (see notable).

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