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open
adjective
°Which is not closed; accessible; as, an open gate.
"Turn left after the second open door."
°Actively conducting or prepared to conduct business.
"Banks are not open on bank holidays."
verb
°To make something accessible or removing an obstacle to something being accessible.
"Turn the doorknob to open the door."
°To bring up (a topic).
"I don't want to open that subject."
noun
°A sports event in which anybody can contest; as, the Australian Open.
°a wire that is broken midway.
"The electrician found the open in the circuit after a few minutes of testing."
synonyms: accessible