to open for public use or traffic; to be in operation, as in a library or park; to open to the world

to be open-minded or outgoing; to be unconstrained by convention or uninhibited in one's lifestyle

(of flowers) to come into bloom; to open up

to lift a ban, restriction, or blockade; to deregulate or hand over a monopoly to private operations

to set free or release, as from prison or unjust detention; to liberate