Meaning of “all right” - Learner’s Dictionary

all right

adjective [ never before noun ], adverb (also alright) uk us
GOOD

B1 good enough, although not very good:

The hotel wasn't great but it was all right.
It's a cheap wine but it tastes all right.
SAFE

A2 safe or well:

I'm all right thanks. How are you?
Did you get home all right last night?
that's all right

used as an answer when someone thanks you:

"Thanks for cleaning the kitchen." "That's all right."

A2 something you say when someone says sorry to show that you are not angry:

"I'm sorry - I forgot all about it." "That's all right."

(Definition of “all right adjective, adverb” from the Cambridge Learner’s Dictionary © Cambridge University Press)