verb

 

use instead to start using another thing or person instead of the one that you are using now

We're thinking of replacing our old TV with a fancy new one.

 

be used instead to start to be used instead of the thing or person that is being used now

This system will replace the old one.

 

get something new to get something new because the one you had before has been lost or damaged

We'll have to replace this carpet soon.

 

put back to put something back in the place where it usually is

She picked up the books and carefully replaced them on the shelf.