opening

nouns

an open or empty space in or between things
"there was a small opening between the trees"; "the explosion made a gap in the wall"
is derived from
a ceremony accompanying the start of some enterprise
is derived from
is derived from
is a type of (narrower)
a formal event performed on a special occasion
"a ceremony commemorating Pearl Harbor"
becoming open or being made open
"the opening of his arms was the sign I was waiting for"
is derived from
is derived from
is derived from
is a type of (narrower)
the act of changing the unity or wholeness of something
the first performance (as of a theatrical production)
"the opening received good critical reviews"
the act of opening something
"the ray of light revealed his cautious opening of the door"
is derived from
antonym
is a type of (narrower)
a change of position that does not entail a change of location
"the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility"
opportunity especially for employment or promotion
"there is an opening in the sales department"
is derived from
is derived from
is a type of (narrower)
a possibility due to a favorable combination of circumstances
"the holiday gave us the opportunity to visit Washington"; "now is your chance"
the initial part of the introduction
"the opening established the basic theme"
is a type of (narrower)
the first section of a communication
a possible alternative
"bankruptcy is always a possibility"
an aperture or hole that opens into a bodily cavity
"the orifice into the aorta from the lower left chamber of the heart"
is derived from
is derived from
a vacant or unobstructed space that is man-made
"they left a small opening for the cat at the bottom of the door"
is a type of (narrower)
a man-made object taken as a whole
an entrance equipped with a hatch; especially a passageway between decks of a ship
is derived from
a recognized sequence of moves at the beginning of a game of chess
"he memorized all the important chess openings"
the first of a series of actions
is derived from
is derived from
is derived from

adjectives

first or beginning
"the memorable opening bars of Beethoven's Fifth"; "the play's opening scene"
antonym
is similar to
serving to begin
"the beginning canto of the poem"; "the first verse"
is similar to
serving to set in motion
"the magazine's inaugural issue"; "the initiative phase in the negotiations"; "an initiatory step toward a treaty"; "his first (or maiden) speech in Congress"; "the liner's maiden voyage"
is similar to
serving to open or begin
"began the slide show with some introductory remarks"
is similar to
appropriate to the beginning or start of an event
"the starting point"; "hands in the starting position"