Meaning of “polite” - Learner’s Dictionary

polite

adjective us uk /pəˈlaɪt/
She was a polite and considerate child.That's not very polite behaviour.Keep the tone of your letter polite.Mark is a cooperative and polite employee.Julie is always polite and friendly.

A2 behaving in a way that is not rude and shows that you do not only think about yourself:

I'm afraid I wasn't very polite to her.
She was too polite to point out my mistake.
politely adverb

B1

He thanked them politely.
politeness noun [ U ]

(Definition of “polite” from the Cambridge Learner’s Dictionary © Cambridge University Press)