| 1. | (of books, usually children's books) having pieces of artwork fastened to the pages so that when the page is opened, a three-dimensional cutout or object is formed and, sometimes, movement of a picture element, such as a door opening, can be activated by pulling a tab. |
| 2. | of or being a device that ejects or raises a finished or used item from the top: a pop-up toaster. |
| 3. | of or pertaining to a device, mechanism, or object that rises or pivots from a concealed or recessed position to its operating position: a camera with a pop-up electronic flash; a car with pop-up headlights. |
| 4. | popping up, as from an appliance or object: pop-up waffles heated in the toaster; a pop-up gauge for indicating when the turkey is done. |
| 5. | a pop-up book. |
| 6. | something, as a partially cut out or spring-mounted illustration in a children's book, that unfolds or springs up when opened or otherwise activated; pop-out: a Christmas card with a pop-up of Santa Claus. |
| 7. | Baseball. pop fly. |

verb, popped, pop⋅ping, noun, adverb, adjective | 1. | to make a short, quick, explosive sound: The cork popped. |
| 2. | to burst open with such a sound, as chestnuts or corn in roasting. |
| 3. | to come or go quickly, suddenly, or unexpectedly: She popped into the kitchen to check the stove. |
| 4. | to shoot with a firearm: to pop at a mark. |
| 5. | to protrude from the sockets: The news made her eyes pop. |
| 6. | Baseball.
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| 7. | to cause to make a sudden, explosive sound. |
| 8. | to cause to burst open with such a sound. |
| 9. | to open suddenly or violently: to pop the hood on a car; to pop the tab on a beer can. |
| 10. | to put or thrust quickly, suddenly, or unexpectedly: He popped the muffins into the oven. |
| 11. | Informal. to cause to fire; discharge: He popped his rifle at the bird. |
| 12. | to shoot (usually fol. by at, off, etc.): He popped off bottles with a slingshot. |
| 13. | British Slang. to pawn. |
| 14. | Informal.
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| 15. | a short, quick, explosive sound. |
| 16. | a popping. |
| 17. | a shot with a firearm. |
| 18. | Informal. soda pop. |
| 19. | a drink or portion of an alcoholic beverage, as a drink of whiskey or a glass of beer: We had a couple of pops on the way home. |
| 20. | Baseball. pop fly. |
| 21. | with an explosive sound: The balloon went pop. |
| 22. | quickly, suddenly, or unexpectedly: Pop, the door flew open! |
| 23. | Informal. unexpected; without prior warning or announcement: The teacher gave us a pop quiz. |
| 24. | pop for, Slang. to pay or buy for oneself or another, esp. as a gift or treat; spring for: I'll pop for the first round of drinks. |
| 25. | pop off, Informal.
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| 26. | pop out, Baseball. to be put out by hitting a pop fly caught on the fly by a player on the opposing team. |
| 27. | pop up, Baseball. to hit a pop fly. |
| 28. | a pop, Slang. each; apiece: five orchids at $30 a pop. |
| 29. | pop in, Informal. to visit briefly and unexpectedly; stop in; drop by: Maybe we'll pop in after the movie. |
| 30. | pop the question, Informal. to propose marriage: They dated for two years before he popped the question. |

| a high fly ball hit to the infield or immediately beyond it that can easily be caught before reaching the ground. |
pop
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pop up
Suddenly appear, as in After a brief warm spell all the flowers popped up, or He's constantly popping up where he's least expected.