"Say" and "tell" are both verbs used to communicate or convey information, but they are used in different ways.
"Say" is a more general term that refers to expressing something through words. It is often used when reporting speech or quoting someone. For example:
She said, "I'm going to the store."
He didn't say anything about the party.
What did you say to him?
He said hello.
They said sorry for being late.
In these examples, "say" is used to indicate the act of speaking or expressing something verbally.
"On the other hand, "tell" is used to indicate giving information, instructions, or advice to someone specifically. It is usually followed by a person or a pronoun. For example:
She told me to be quiet.
He told us about his trip to Europe.
Can you tell him I'll be late?
She told me a story.
He told me a lie.
Can you tell me a joke.
In these examples, "tell" is used to indicate the act of communicating information or instructions directly to someone.
In summary, "say" is more general and refers to expressing something through words, while "tell" implies a direct communication of information or instructions to someone.