say

have something (or nothing) to say for yourself contribute (or fail to contribute) to a conversation or discussion.

say no more used to indicate that you understand what someone is trying to imply. informal

says you! used in spoken English to express disagreement or disbelief. informal, dated

say when said when helping someone to food or drink to instruct them to indicate when they have had enough. informal

you can say that again! used to express emphatic agreement. informal

you don't say (so)! used to express amazement or disbelief. informal

☞ Also used ironically to suggest that the obvious has been stated.

☞ For other idioms containing say, see the entry for the main word in the idiom (for example, wouldn't say boo to a goose at boo).