Definition of open

  1. open Adjective Which is not closed; accessible; unimpeded; as, an open gate.
  2. open Adjective Actively conducting or prepared to conduct business.
  3. open Adjective Receptive.
  4. open Adjective Public; as, an open letter, an open declaration.
  5. open Adjective Candid, ingenuous, not subtle in character:
  6. open Adjective Having a free variable.
  7. open Adjective Is part of a predefined collection of subsets of X, that defines a topological space on X.
  8. open Adjective In current use; mapped to part of memory.
  9. open Verb To make something accessible or removing an obstacle to something being accessible.
  10. open Verb To bring up (a topic).
  11. open Verb To make accessible to customers or clients.
  12. open Verb To start (a campaign).
  13. open Verb To become open.
  14. open Verb To begin conducting business.
  15. open Verb To begin a side's innings as one of the first two batsmen.
  16. open Verb To bet before any other player has in a particular betting round in a game of poker.
  17. open Verb To reveal one's hand.
  18. open Verb To load into memory for viewing or editing.
  19. open Noun A sports event in which anybody can contest; as, the Australian Open.
  20. open Noun a wire that is broken midway.
  21. open Noun ("with the") Open or unobstructed space; an exposed location.
  22. open Noun ("with the") Public knowledge or scrutiny; full view.
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