look up

US /lʊk ˈʌp/
UK /lʊk ˈʌp/
"look up" picture
1.

to search for information, especially in a reference book or on a computer

:
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I need to look up the meaning of this word in the dictionary.
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You can look up his address online.
:
researchconsultfindretrievecheck
2.

to improve or get better

:
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Things are finally starting to look up for us.
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His health has really looked up since he started exercising.
:
improveget betterprogressflourishprosper
3.

to visit someone, especially after a long time or when you are in their area

:
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I'll look you up next time I'm in town.
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He promised to look up his old college friends.
:
visitcall onseek outtrack down
:
look up tolooklook tolook intolook forlook onlook at