We found 8 dictionaries that define the word mock ups:

General (6 matching dictionaries)

1. mock-ups: Merriam-Webster
2. mock-ups, mock-ups: Collins English Dictionary
3. Mock-ups, mock-ups: Wordnik
4. mock-ups: Wiktionary
5. mock-ups: Dictionary.com
6. mock-ups: TheFreeDictionary.com

Computing (1 matching dictionary)

7. mock-ups: Encyclopedia

Slang (1 matching dictionary)

8. mock ups: Urban Dictionary

(Note: See mock_up as well.)

Definitions from Wiktionary (mock up) ▸ verb:  (transitive) To create a model or demonstration; to create a preliminary version or sample. ▸ Also see mock_up Types: wireframe, prototype, visual mockup, interactive mockup, low-fidelity mockup, static mockup, dynamic mockup, more... ▸ Words similar to mock ups ▸ Usage examples for mock ups ▸ Idioms related to mock ups ▸ Wikipedia articles (New!) ▸ Words that often appear near mock ups ▸ Rhymes of mock ups ▸ Invented words related to mock ups