opening

Adjective
  1. First or beginning (synset 301012544)
    "the memorable opening bars of Beethoven's Fifth"; "the play's opening scene"
    similar to:
Noun
  1. An open or empty space in or between things (synset 109402023)
    "there was a small opening between the trees"; "the explosion made a gap in the wall"
    is a type of: space - an empty area (usually bounded in some way between things)
    subtypes:
    • pocket - an opening at the corner or on the side of a billiard table into which billiard balls are struck
    • diastema - a gap or vacant space between two teeth
    • nodes of ranvier, ranvier's nodes - small gaps in the myelin sheath of medullated axons
    • foramen, hiatus - a natural opening or perforation through a bone or a membranous structure
    • breach - an opening (especially a gap in a dike or fortification)
    • chasm - a deep opening in the earth's surface
    • cleft, crack, crevice, fissure, scissure - a long narrow opening
    • hole - an opening into or through something
    • mouth - an opening that resembles a mouth (as of a cave or a gorge)
    • rift - a gap between cloud masses
    • rent, rip, snag, split, tear - an opening made forcibly as by pulling apart
    • window - an opening that resembles a window in appearance or function
    is a part of: earth's surface, surface - the outermost level of the land or sea
    same as: gap
  2. A ceremony accompanying the start of some enterprise (synset 107467309)
    is a type of: ceremonial, ceremonial occasion, ceremony, observance - a formal event performed on a special occasion
  3. Becoming open or being made open (synset 100384198)
    "the opening of his arms was the sign I was waiting for"
    is a type of: change of integrity - the act of changing the unity or wholeness of something
    subtypes: cut, cutting - the act of penetrating or opening open with a sharp edge
  4. The first performance (as of a theatrical production) (synset 107343963)
    "the opening received good critical reviews"
    is a type of: start - the beginning of anything
    same as: curtain raising, opening night
  5. The act of opening something (synset 100339467)
    "the ray of light revealed his cautious opening of the door"
    is a type of: motility, motion, move, movement - a change of position that does not entail a change of location
  6. Opportunity especially for employment or promotion (synset 114508833)
    "there is an opening in the sales department"
    is a type of: chance, opportunity - a possibility due to a favorable combination of circumstances
  7. The initial part of the introduction (synset 106409119)
    "the opening established the basic theme"
    is a type of: introduction - the first section of a communication
    subtypes:
    • teaser - an attention-getting opening presented at the start of a television show
    • salutation - word of greeting used to begin a letter
  8. A possible alternative (synset 105800018)
    "bankruptcy is always a possibility"
    is a type of: alternative, choice, option - one of a number of things from which only one can be chosen
    subtypes: possible - something that can be done
    same as: possibility, possible action
  9. An aperture or hole that opens into a bodily cavity (synset 105257118)
    "the orifice into the aorta from the lower left chamber of the heart"
    is a type of: passage, passageway - a path or channel or duct through or along which something may pass
    subtypes:
    • vent - external opening of urinary or genital system of a lower vertebrate
    • blastopore - the opening into the archenteron
    • aortic orifice - the orifice from the lower left chamber of the heart to the aorta
    • stoma - a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)
    • porta hepatis - opening for major blood vessels to enter and leave the liver
    • spiracle - a breathing orifice
    • mouth - the externally visible part of the oral cavity on the face and the system of organs surrounding the opening
    • os - a mouth or mouthlike opening
    • cervix, cervix uteri, uterine cervix - necklike opening to the uterus
    • fenestra - a small opening covered with membrane (especially one in the bone between the middle and inner ear)
    • cardia - the opening into the stomach and that part of the stomach connected to the esophagus
    • introitus - entrance or opening to a hollow organ or tube (especially the vaginal opening)
    • external orifice, urethral orifice - the orifice through which urine is discharged
    • pylorus - a small circular opening between the stomach and the duodenum
    • anus - the excretory opening at the end of the alimentary canal
    • fontanel, fontanelle, soft spot - any membranous gap between the bones of the cranium in an infant or fetus
    • naris - any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx
    • rima - a narrow elongated opening or fissure between two symmetrical parts
    same as: orifice, porta
  10. A vacant or unobstructed space that is man-made (synset 103854249)
    "they left a small opening for the cat at the bottom of the door"
    is a type of: artefact, artifact - a man-made object taken as a whole
    subtypes:
    • aperture - an man-made opening; usually small
    • bell - the flared opening of a tubular device
    • breech, rear of barrel, rear of tube - opening in the rear of the barrel of a gun where bullets can be loaded
    • exit, issue, outlet, way out - an opening that permits escape or release
    • fly, fly front - an opening in a garment that is closed by a zipper or by buttons concealed under a fold of cloth
    • crack, gap - a narrow opening
    • gun muzzle, muzzle - the open circular discharging end of a gun
    • hole - an opening deliberately made in or through something
    • inlet, intake - an opening through which fluid is admitted to a tube or container
    • interstice - small opening between things
    • fenestella, lunette - oval or circular opening; to allow light into a dome or vault
    • mouth - the opening of a jar or bottle
    • neck, neck opening - an opening in a garment for the neck of the wearer; a part of the garment near the wearer's neck
    • pass-through - an opening that resembles a window between two rooms (especially a shelved opening between a kitchen and dining room that is used to pass dishes)
    • embrasure, port, porthole - an opening (in a wall or ship or armored vehicle) for firing through
    • slit - a long narrow opening
    • spout - an opening that allows the passage of liquids or grain
    • throat - an opening in the vamp of a shoe at the instep
    • grille, lattice, wicket - small opening (like a window in a door) through which business can be transacted
    • window - a transparent opening in a vehicle that allow vision out of the sides or back; usually is capable of being opened
    • window - an opening in a wall or screen that admits light and air and through which customers can be served
  11. An entrance equipped with a hatch;
    Especially a passageway between decks of a ship (synset 103504286)
    is a type of: entrance, entranceway, entree, entry, entryway - something that provides access (to get in or get out)
    subtypes: escape hatch - hatchway that provides a means of escape in an emergency
    has: hatch - a movable barrier covering a hatchway
    same as: hatchway, scuttle
  12. A recognized sequence of moves at the beginning of a game of chess (synset 100458914)
    "he memorized all the important chess openings"
    referred to in: chess, chess game - a board game for two players who move their 16 pieces according to specific rules; the object is to checkmate the opponent's king
    is a type of: sequence, succession - the action of following in order
    same as: chess opening
  13. The first of a series of actions (synset 100240097)
    is a type of: beginning, commencement, start - the act of starting something
    subtypes:
    same as: first step, initiative, opening move

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