Meaning of “look sb up” in the English Dictionary

british dictionary

"look sb up" in British English

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look sb up

informal
phrasal verb with look uk /lʊk/ us /lʊk/ verb

to visit someone you have not seen for a long time when you are visiting the place where they live:

Look me up next time you're in Los Angeles.

(Definition of “look sb up” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)