Keep at someone
- keep somebody under constant pressure of persuasion
You'll have to keep at him if you want your money back.
Keep at something
- persevere with something
If you want to learn to play the piano well, you have to keep at it.
Keep in
- stay indoors
It's best to keep in when it's so cold.
Keep someone in
- punish a pupil by detaining him after school
If you don't behave properly, the whole class will be kept in.
Keep something in
- store sth in one's home; have something available for use
We don't keep much beer in as we don't drink it.
Keep in with someone
- continue friendly relations with someone
It's best to keep in with Mr Wilson. He's my CEO!
Keep on
- continue
Keep on until you reach the traffic lights and then turn right.
Keep something on
- continue to maintain something.
Will the Browns keep on the big house now that their last daughter has married and moved out?
Keep on at somebody (for/about something)
- (informal) worry/criticize someone continuously
I do wish you wouldn't keep on at me about the money I lost. It wasn't intentional!
Keep out of something
- not get involved in something
Chris, you keep out of this - it isn't your argument!
Keep up
- remain unchanged (weather)
- remain bright and cheerful
If this storm keeps up the crops will be destroyed.
Her spirits kept up in spite of all her troubles.
Keep someone up
- prevent someone from going to bed
It's late and I'm keeping you up, so I'll go now.
Keep something up
- maintain something
Their country house became too expensive to keep up.
Keep up something
- continue something (e.g.friendship, an activity or study)
We've kept up our friendship for over twenty years now.
Keep up with someone
- remain at the same level or position as somebody
Are you keeping up with me or am I reading too fast?