Reference meaning
pop-up
Last updated
a book (usually for children) that contains one or more pages such that a three-dimensional structure rises up when a page is opened
Related source terms
pop-up book
Other meanings
2. noun
a short high fly ball
3. verb
appear suddenly or unexpectedly
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 06413260-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.