To reply; answer.
The lawyer came back sharply in defense of his client.
No matter how the audience heckled him, the comedian always had an answer to come back with.
To get a former place or position back, reach again a place which you have lost.
After a year off to have her baby, the singer came back to even greater fame.
It is hard for a retired prize fighter to come back and beat a younger man.
To part; divide; separate.
John's mother-in-law came to live in his home, and as time passed she came between him and his wife.
Bill's hot rod came between him and his studies, and his grades went down.
come by honestly
To inherit (a characteristic) from your parents.
Joe comes by his hot temper honestly; his father is the same way.
To get; obtain; acquire.
A good job like that is hard to come by.
Money easily come by is often easily spent.
How did she come by that money?
To tell all; tell the whole story; confess.
The boy suspected of stealing the watch came clean after long questioning.
come down hard on
To scold or punish strongly.
The principal came down hard on the boys for breaking the window.
To oppose strongly.
The minister in his sermon came down hard on drinking.
come down in the world
To lose a place of respect or honor, become lower (as in rank or fortune).
The stranger plainly had come down a long way in the world.
come down on like a ton of bricks
To direct one's full anger at somebody.
When the janitor was late for work, the manager came down on him like a ton of bricks.