Define Show Up

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Definition of show up. transitive verb. 1 : to expose or discredit especially by revealing faults. showed them up as frauds..Show up. also show informal. phrasal verb with show uk // us /o/ verb 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..Define show up phrasal verb and get synonyms. What is show up phrasal verb ? show up phrasal verb meaning, pronunciation and more by Macmillan Dictionary..