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Definition of Open up
1. Verb. Cause to open or to become open. "They want to open up the doors"; "Mary opened the car door"
Exact synonyms: Open
Specialized synonyms: Unbar, Break Open, Click Open, Reopen, Unlock, Unbolt, Unseal, Uncork, Jimmy, Lever, Prise, Prize, Pry, Breach, Gap, Lance
Causes: Open
Antonyms: Close
Derivative terms: Opener, Opener, Opening, Opening
Specialized synonyms: Unbar, Break Open, Click Open, Reopen, Unlock, Unbolt, Unseal, Uncork, Jimmy, Lever, Prise, Prize, Pry, Breach, Gap, Lance
Causes: Open
Antonyms: Close
Derivative terms: Opener, Opener, Opening, Opening
2. Verb. Become available. "An opportunity opened up"
3. Verb. Make available. "This opens up new possibilities"
4. Verb. Open up an area or prepare a way. "She pioneered a graduate program for women students"
5. Verb. Start to operate or function or cause to start operating or functioning. "The business is going to open up "; "Open a business"
Exact synonyms: Open
Specialized synonyms: Establish, Found, Launch, Set Up
Antonyms: Close
Derivative terms: Opening, Opening
Specialized synonyms: Establish, Found, Launch, Set Up
Antonyms: Close
Derivative terms: Opening, Opening
6. Verb. Become open. "The doors open up "; "The door opened"
Exact synonyms: Open
Generic synonyms: Change State, Turn
Specialized synonyms: Unfasten, Fly Open
Antonyms: Close
Derivative terms: Opening
Generic synonyms: Change State, Turn
Specialized synonyms: Unfasten, Fly Open
Antonyms: Close
Derivative terms: Opening
7. Verb. Talk freely and without inhibition. "Sam and Sue open up"