From Longman Dictionary of Contemporary Englishpop up phrasal verbAPPEARto appear, sometimes unexpectedly Click here, and a list of files will pop up. Her name keeps popping up in the newspapers. → pop-up1 → pop→ See Verb tableldoce_267_apop-upˈpop-up1 adjective 1 → pop-up book/card etc2 → pop-up menu/window3 → pop-up restaurant/bar/shop etc
Examples from the Corpus
pop-up• Robert Sabuda is fast gaining a reputation as a master of the art of making intricate and appealing pop-up books.• All books have patterns for many pop-up designs and No. 2 has pre-cut designs ready to use on card as well as patterns.• Men pop up like, well, pop-up men.• A pop-up Note Book is also available at any point in the system and Hint Fields for more complex data entry.• For that reason, he rejected pop-up windows.pop-uppop-up2 noun [countable] 1 a window, often containing an advertisement, that suddenly appears on a computer screen, especially when you are looking at a website2 a restaurant, bar, shop etc that is opened somewhere for a short, limited period of timeExamples from the Corpus
pop-up• The final pop-up is a wire sculpture which, with a small battery, becomes a game to test dexterity.• I think this is because the pop-up is much more noticeable and less selective.From Longman Business Dictionarypop-upˈpop-up1 noun [countable]COMPUTINGMARKETING a small window containing an advertisement that suddenly appears on a computer screen when you are looking at a websitepop-uppop-up2 adjective [only before a noun]COMPUTING a pop-up window or advertisement appears suddenly on a computer screen while you are using it 