From Longman Dictionary of Contemporary Englishnotnot /nɒt $ nɑːt/ ●●●S1W1 adverb1NOTused to make a word, statement, or question negativeMost of the stores do not open until 10 am.She’s not a very nice person.You were wrong not to inform the police.‘Can we go to the park?’ ‘No, not today, dear.’not at all/not ... at all (=used to emphasize what you are saying)The changes were not at all surprising.I do not like his attitude at all. →no1, n't2NOTused in order to make a word or expression have the opposite meaningEdinburgh isn’t far now.The food is not very good there.not a lot/much/many etc (=only a few, only a little etc)Not much is known about the disease.Not many people have read the report.Most of the hotels are not that cheap (=they are fairly expensive).3NOTused instead of a whole phrase to mean the opposite of what has been mentioned before itNo one knows if the story is true or not.I hope to see you tomorrow, but if not, leave me a message.‘Is Mark still sick?’ ‘I hope not.’ →so1(4)4 →not only5 →not a/not one6 →not that ...7 →not at all8 →not the sharpest tool in the box/shed9 →– not! → not halfat half3(6), → not to sayat say1(43)GRAMMAR: Negatives• Don’t use another negative word such as ‘no’, ‘nothing’, or ‘nobody’ after not. Use any, anything, anybody etc. You say: They do not have any money.I didn’t know anybody.✗Don’t say: They do not have no money. | I didn’t know nobody.• Not goes before ‘to’ in an infinitive verb. You say: I try not to make mistakes.✗Don’t say: I try to not make mistakes.