Number of syllables in the word 'not'

1. No of syllables in not : 1
2. Divide syllables in not : not

More about the word - not

1. noun
2. Synonyms : !, ~, ¬, ˈ
3. Definition : A unary operation on logical values that changes true to false, and false to true.

1. adverb
2. Definition : Negates the meaning of the modified verb.
3. Definition : To no degree.
4. Definition : (understatement, litotes) Used to modify superlatives to indicate the opposite or near opposite, often in a form of understatement.

1. conjunction
2. Definition : And not.

1. interjection
2. Synonyms : I don't think, bender
3. Definition : (1990s) Used to indicate that the previous phrase was meant sarcastically or ironically.

Sources:

• https://en.wiktionary.org/wiki/NOT
• https://en.wiktionary.org/wiki/not