Look up

look up phrasal verb
 1. if a situation is looking up, it is improving SYN improve, get better:
   • Now the summer’s here things are looking up!
 2. look something ↔ up if you look up information in a book, on a computer etc, you try to find it there:
   • Look the word up in your dictionary.
   • I’ll just look up the train times.
 3. look somebody ↔ up to visit someone you know, especially when you are in the place where they live for a different reason:
   • Don’t forget to look me up when you come to Atlanta.

ˌlook ˈup (from sth)derived

to raise your eyes when you are looking down at sth

• She looked up from her book as I entered the room.

look up to somebody (phrasal verb)
to admire or respect someone:
I’ve always looked up to Bill for his courage and determination.