Question

what is the difference between say and tell

Answer 1

SAY-

utter words so as to convey information, an opinion, a feeling or intention, or an instruction.

TELL-

communicate information to someone in spoken or written words.

Answer 2

Say and tell have similar meanings, but they are used in different ways. A good way to know when to use each is to remember that somebody says something, but somebody tell someone something. So the main difference is that when you use say, you don't mention who said it, while when you use tell you do.