look (something) up

Definition: to try to find information in a reference book, or on a timetable or map.

(This phrasal verb has more than one meaning)

E.g.1: If you look the word up in a good dictionary you’ll find its meaning, pronunciation and information on how to use it.
E.g.2: He looked up the phone number of a local plumber and rushed to the phone.

This phrasal verb can be separated. (E.g. 1)