open
adjective
°Which is not closed; accessible; unimpeded; 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.
synonyms: accessible, unimpeded