Meaning of “ceiling” - Learner’s Dictionary

ceiling

noun [ C ] uk us /ˈsiːlɪŋ/
ROOM

A2 the surface of a room that you can see when you look above you

AMOUNT

a limit on the amount that can be paid for something:

They have set a ceiling on pay rises.

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