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English definition of “show up”

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show up

( also show) informal
verb uk phrasal verb with show   /ʃəʊ/ us    /ʃoʊ/ (showed, shown)
B1 to arrive somewhere in order to join a group of people, especially late or unexpectedly: I invited him for eight o'clock, but he didn't show up until 9.30. We were expecting 30 people to come, but half of them never showed up.
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(Definition of show up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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