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Definition of 'open up'

Verb

  1. cause to open or to become open; "Mary opened the car door"
       Synonyms: open
       Antonyms: close shut
  2. become available; "an opportunity opened up"
       Synonyms: open
  3. make available; "This opens up new possibilities"
       Synonyms: open
  4. open up an area or prepare a way; "She pioneered a graduate program for women students"
       Synonyms: pioneer
  5. start to operate or function or cause to start operating or functioning; "open a business"
       Synonyms: open
       Antonyms: close up close fold shut down close down
  6. become open; "The door opened"
       Synonyms: open
       Antonyms: close shut
  7. talk freely and without inhibition
       Antonyms: close up clam up dummy up shut up belt up button up be quiet keep mum


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