/ Thesaurus / O Synonyms of open up Find synonyms for: Verb1. open, open upusage: cause to open or to become open; "Mary opened the car door"2. open, open up, arise, come upusage: become available; "an opportunity opened up"3. open, open up, yield, give, affordusage: make available; "This opens up new possibilities"4. pioneer, open up, introduce, innovateusage: open up an area or prepare a way; "She pioneered a graduate program for women students"5. open, open upusage: start to operate or function or cause to start operating or functioning; "open a business"6. open, open up, change state, turnusage: become open; "The door opened"7. open up, talk, speak, utter, mouth, verbalize, verbaliseusage: talk freely and without inhibitionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language