a computer menu, window, etc. that can be brought to the screen quickly while you are working on another document; a computer window, especially one containing an advertisement, that appears on the screen although it has not been requested
Example:
- an advertising pop-up
a shop, restaurant, etc. that opens quickly somewhere and is designed to only use that location for a short period of time
Example:
- The designers opened a pop-up in the main shopping area as part of the fashion event.
a ball that is hit high into the air but does not go far, making it easy to catch