Not is the general declarative form of no, indicating a negative meaning relative to a related statement. Not may refer to:

Not as a negative

During the early 90's there was a fad among teens to use not as a negative. For example person 1: "I can lift 350 pounds without breaking a sweat" person 2: "Not!"

• Logical negation, unary operator in logic
• NOT gate, digital logical gate
• Not!, exclamatory negation or grammatical construction expressing disagreement
• Nordic Optical Telescope
• Scott "NOT" Ian, guitarist for American heavy metal band Anthrax

See also

• Knot (disambiguation)
• NOTs, or "New Era Dianetics for Operating Thetans", a Scientology term