A ceiling is the top part of the inside of a room. It is above your head when you are inside.
The room has a white ceiling.
She painted the ceiling blue.
A ceiling can mean the highest amount or level allowed. It is the top limit for something.
My phone plan has a data ceiling.
There is a salary ceiling in this job.
In law or business, a ceiling means the highest price or rate allowed. It stops prices from going higher than this.
The government set a ceiling on rent prices.
There is a ceiling for interest rates now.
This meaning shows the highest amount of money a person can earn. This limit can be set by rules or laws.
There is a salary ceiling for workers here.
He reached the ceiling on bonuses.
Sometimes 'ceiling' is used with other words like 'ceiling fan' to show the fan on the roof inside a room. It helps cool the room.
The ceiling fan is on now.
Turn off the ceiling fan please.
In technology, a ceiling means the highest limit a system allows, like maximum speed or data usage. You cannot go past this.
The system has a ceiling on data use.
You reached the ceiling for internet speed.
In mining, the ceiling is the rock above a tunnel. It is important to keep it safe to prevent falling rocks.
The miners watch the ceiling carefully.
The ceiling in the tunnel is very high.