an act or instance of making or becoming open.

the act of a person or thing that opens.

an unobstructed or unoccupied space or place.

a void in solid matter; a gap, hole, or aperture.

a tract of land thinly wooded as compared with adjoining forest tracts.

the act of beginning; start; commencement

the opening of a new session of Congress.

the first part or initial stage of anything.

an employment vacancy; an unfilled position or job

There are no openings for clerks today.

an opportunity; chance.

a formal or official beginning, as of a sport season or a season's sale of goods

the opening of the deer-hunting season; Swimsuits sold well at the summer opening.

the first performance of a theatrical production.

the first public showing or use of something

the opening of an art exhibition.

a celebration of the first public showing or performance or of the first use or start of something

The new supermarket is going to give away prizes at its opening.

Law . the statement of the case made by counsel to the court or jury preliminary to adducing evidence.

a mode of beginning a game

a manual of chess openings.

noun

closing , closure , solid , misfortune , conclusion , ending , finish

noun

aperture , breach , break , cavity , chink , cleft , crack , cranny , crevice , cut , discontinuity , door , fissure , hatch , interstice , mouth , orifice , outlet , perforation , recess , rent , rift , rupture , scuttle , slit , slot , space , split , spout , tear , vent , window , availability , big break , connection , cut * , fling * , go * , go-at , in the running , iron in the fire , look-in , occasion , opportunity , place , possibility , run , scope , shot * , show , squeak * , time , vacancy , whack * , birth , coming out , commencement , curtain-raiser , dawn , inauguration , inception , initiation , kickoff , launch , launching , onset , opener , outset , start , beginning , genesis , nascence , nascency , origin , spring , incipience , incipiency , leadoff , origination , chance , cave , chasm , debut , gap , gash , gate , hiatus , hole , introduction , lacuna , pass , pore , portal , span , threshold , width