(adj): predicate) -- (slightly open
(adj): open wide
(adj): vs. closed) -- (affording free passage or access
(adj): made open or clear
(adj): (of a container) having the stopper removed
(adj): gaping open as if threatening to engulf someone or something
(adj): with no protection or shield
(adj): vs. protected) -- (lacking protection or defense
(adj): open to or in view of all
(adj): vs. private) -- (not private; open to or concerning the people as a whole
(adj): vs. closed), opened -- (used of mouth or eyes
(adj): predicate), gaping -- (with the mouth wide open as in wonder or awe
(adj): (used of eyes) open and fixed as if in fear or wonder
(adj): (used of eyes) fully open or extended
(adj): with the mouth wide open indicating boredom or sleepiness
(adj): not having been filled
(adj): vs. unavailable) -- (obtainable or accessible and ready for use or service
(adj): accessible to all
(adj): vs. restricted) -- (not subject to or subjected to restriction
(adj): not defended or capable of being defended
(adj): vs. invulnerable) -- (susceptible to attack
(adj): (of textures) full of small openings or gaps
(adj): vs. fine), harsh -- (of textures that are rough to the touch or substances consisting of relatively large particles
(adj): having no protecting cover or enclosure
(adj): vs. enclosed) -- (not closed in our surrounded or included
(adj): vs. closed) -- ((set theory) of an interval that contains neither of its endpoints
(adj): not brought to a conclusion; subject to further thought
(adj): vs. settled) -- (still in doubt
(adj): not sealed or having been unsealed
(adj): vs. sealed) -- (not closed or secured with or as if with a seal
(adj): without undue constriction as from e.g. tenseness or inhibition
(adj): vs. constricted) -- (not constricted physically or by extension psychologically
(adj): vs. unreceptive), open -- (ready or willing to receive favorably
(adj): accepting willingly
(adj): characterized by or allowing admission
(adj): capable of mentally absorbing
(adj): having an open mind
(adj): vs. covert), open -- (open and observable; not secret or hidden
(adj): with no effort to conceal
(adj): devoid of elaboration or diminution or concealment; bare and pure
(adj): plain to see
(adj): obvious to the eye
(adj): prenominal) -- (not requiring union membership
(adj): vs. union) -- (not belonging to or not allowing affiliation with a trade union
(adj): possibly accepting or permitting
(adj): vs. unsusceptible) -- ((often followed by `of' or `to') yielding readily to or capable of
(adj): affording free passage or view
(adj): vs. obstructed) -- (free from impediment or obstruction or hindrance
(adj): openly straightforward and direct without reserve or secretiveness
(adj): vs. disingenuous), artless -- (characterized by an inability to mask your feelings; not devious
(adj): ready for business
(adj): vs. inactive) -- (full of activity or engaged in continuous activity
(v): cause to open or to become open
(v): start to operate or function or cause to start operating or functioning
(v): become open
(v): undergo a transformation or a change of position or action
(v): begin or set in action, of meetings, speeches, recitals, etc.
(v): get off the ground
(v): spread out or open from a closed or folded state
(v): cancel, annul, or reverse an action or its effect
(v): make available
(v): be the cause or source of
(v): become available
(v): result or issue
(v): have an opening or passage or outlet
(v): make the opening move
(v): have a turn; make one's move in a game
(v): afford access to
(v): display the contents of a file or start an application as on a computer
(v): to show, make visible or apparent
(n): a clear or unobstructed space or expanse of land or water
(n): a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
(n): where the air is unconfined
(n): the region that is outside of something
(n): a tournament in which both professionals and amateurs may play
(n): a sporting competition in which contestants play a series of games to decide the winner
(n): information that has become public
(n): knowledge that is available to anyone
