Meaning of “civil” - Learner’s Dictionary

civil

adjective uk us /ˈsɪvəl/
PEOPLE [ always before noun ]

relating to the ordinary people or things in a country and not to military or religious organizations:

They married in a civil ceremony.
POLITE

polite in a formal way:

He and his ex-wife can't even have a civil conversation.

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