| Main Entry: | |
| Part of Speech: | verb |
| Definition: | open up |
| Synonyms: | add to, augment, broaden, dilate, distend, enlarge, expand, extend, grow, grow larger, increase, multiply, open, open out, open wide, ream, spread, spread out, stretch, swell, unfold |
| Antonyms: | cramp, narrow, restrict |