Phrasal Verbs
(of business, someone's situation, etc.) to become better synonym improve At last things were beginning to look up.
Definitions on the go
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to raise your eyes when you are looking down at something She looked up from her book as I entered the room.
to visit or make contact with someone, especially when you have not seen them for a long time Look me up the next time you're in San Francisco.
to look for information in a dictionary or reference book, or by using a computer Can you look up the address on the Web site? I looked it up in the dictionary.