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English definition of “check up on sb”

check up on sb

verb uk phrasal verb with check   /tʃek/ us  
C1 to try to discover what someone is doing in order to be certain that that person is doing what they should be doing: My mum checks up on me most evenings to see that I've done my homework.Testing, checking and experimenting
(Definition of check up on sb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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