no.
Meaning of no. – Learner’s Dictionary
no
exclamation
uk
/nəʊ/ us
no exclamation (DISAGREE)
A1
no exclamation (AGREE)
no
determiner
uk
/nəʊ/ us
no determiner (NOT ANY)
A1
not any:
no determiner (FORBID)
There's no doing sth
something that you say when an action is impossible:
no
adverb
uk
/nəʊ/ us
no ... than
(Definition of no. from the Cambridge Learner's Dictionary © Cambridge University Press)