To look up something (or look something up) is to try and find a piece of information in a book (such as a dictionary, directory, thesaurus or encyclopedia); or by using a computer.
Examples of use:
1. I’m looking up information about grasshoppers.
2. Look up the meaning of new English words in your dictionary.
3. I looked up her telephone number in the telephone directory.
4. Q. What are you doing at the computer?
A. I’m looking up the population of Brazil for my geography project.
infinitive |
look up |
present simple |
look up and looks up |
-ing form |
looking up |
past simple |
looked up |
past participle |
looked up |
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