From Longman Dictionary of Contemporary Englishshow up phrasal verb1 informalARRIVEGO TO/ATTEND to arrive, especially at the place where someone is waiting for you SYN turn up Seth showed up, apologising for being late. We had 200 people show up for our seminar.2 show something ↔ upNOTICE to make it possible to see or notice something that was not clear before The sunlight showed up the marks on the window.3 CLEAR/EASY TO SEENOTICEto be easy to see or notice Use a light colour which will show up on a dark background.4 show somebody ↔ upEMBARRASSED to make someone feel embarrassed by behaving in a stupid or unacceptable way when you are with them SYN embarrass She says I showed her up in front of her friends when they came to the house. → show→ See Verb table
