A phrase that combines a verb with a preposition or adverb or both and that functions as a verb whose meaning is different from the combined meanings of the individual words.
Phrasal Verb:
call someone back
Meaning / Example:
1. to call someone again on the telephone. > Since she is not there, I will call her back in half an hour.
2. to return a telephone call to a person who had called earlier. > I got his message; I will call him back tomorrow.