Collins English-English Dictionary

not [nɒt]

1. 1. adv not but what

2. 2. adv used to negate the sentence, phrase, or word that it modifies

   I will not stand for it

3. 3. adv (in combination)

   they cannot go

4. 4. sentence substitute used to indicate denial, negation, or refusal

   certainly not

5. 5. sentence substitute [Etymology] C14 not, variant of nought nothing, from Old English nawiht, from na no + wiht creature, thing. See naught, nought