look something up

(phrasal verb) search for a piece of information in a book

Example Sentences:

A: Do you know the number for the pizza place?
B: No, can you look it up in the phone book?

I looked up the phone number for the pizza place.

You should try to memorize numbers that you are always looking up. That way you won’t have to waste so much time.

Similar idioms:

1. breakdown (2)
2. show up
3. look on
4. give someone a piece of your mind
5. look forward to
6. look back on