To close is to shut something or to end something. You could close a door, close your mouth, or even close a deal.

This versatile word usually means "the end" or "near." When a store is closed, you can't go in: the door is closed and locked. When people are close, they are right next to each other — or they're emotionally close to one another. In baseball, the closer is a pitcher who tries to end the game. If your flight had "a close call," it almost crashed. You can close a program on a computer, and you close your eyes when you go to sleep after reading this.

Definitions of close
  1. adjective
    at or within a short distance in space or time or having elements near each other
    close to noon”
    “how close are we to town?”
    “a close formation of ships”
    adjacent, next, side by side
    nearest in space or position; immediately adjoining without intervening space
    completely enveloping
    adpressed, appressed
    pressed close to or lying flat against something
    approximate, close together
    located close together
    at hand, close at hand, imminent, impendent, impending
    close in time; about to occur
    at hand, close at hand
    close in space; within reach
    having the sails trimmed for sailing as close to the wind as possible
    close set, close-set
    set close together
    contiguous, immediate
    very close or connected in space or time
    circumferent, encompassing, surrounding
    closely encircling
    surrounding and closing in on or hemming in
    being at close quarters
    placed side by side often for comparison
    nestled, snuggled
    drawn or pressed close to someone or something for or as if for affection or protection
    very close in space or time
    reduced to a small appressed thing that resembles a scale
    walk-to, walking
    close enough to be walked to
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    separated in space or coming from or going to a distance
    located at a great distance in time or space or degree
    very distant in time or space
    most distant in any direction
    covering a long distance
    not adjacent; not next
    happening in or being of another town or city
    yon, yonder
    distant but within sight (`yon' is dialectal)
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  2. adjective
    not far distant in time or space or degree or circumstances
    “she was close to tears”
    “had a close call”
    synonyms: near, nigh
    near or close to but not necessarily touching
    close at hand
    of a seeker; near to the object sought
    of a seeker; very near to the object sought
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    located at a great distance in time or space or degree
    of a seeker; far from the object sought
    distant, remote
    located far away spatially
    distant, remote, removed
    separate or apart in time
    far-off, faraway
    very far away in space or time
    more distant in especially space or time
    farthermost, farthest, furthermost, furthest, utmost, uttermost
    (comparatives of `far') most remote in space or time or order
    farther, further
    more distant in especially degree
    off the beaten track, out-of-the-way
    remote from populous or much-traveled regions
    relatively far from a center or middle
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  3. adjective
    close in relevance or relationship
    “a close family”
    “we are close sympathy with...”
    close kin”
    “a close resemblance”
    approximate, near
    very close in resemblance
    very close and convivial
    buddy-buddy, chummy, thick
    (used informally) associated on close terms
    close-knit, closely knit
    held together as by social or cultural ties
    denoting confidence or intimacy
    suggesting connivance
    dear, good, near
    with or in a close or intimate relationship
    familiar, intimate
    having mutual interests or affections; of established friendship
    marked by close acquaintance, association, or familiarity
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    distant, remote
    far apart in relevance or relationship or kinship
    far removed mentally
    loosely knit
    having only distant social or legal ties
    separated in relationship by a given degree of descent
    beyond or outside an area of immediate interest; remote
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  4. adjective
    (of a contest or contestants) evenly matched
    “a close contest”
    “a close election”
    synonyms: tight
    having the same quantity, value, or measure as another
  5. adjective
    marked by fidelity to an original
    “a close translation”
    synonyms: faithful
    conforming exactly or almost exactly to fact or to a standard or performing with total accuracy
  6. adjective
    rigorously attentive; strict and thorough
    close supervision”
    “paid close attention”
    “a close study”
    “kept a close watch on expenditures”
    exercising caution or showing care or attention
  7. adjective
    strictly confined or guarded
    “kept under close custody”
    under restraint
  8. adjective
    close quarters”
    synonyms: confining
    not free to move about
  9. adjective
    fitting closely but comfortably
    “a close fit”
    synonyms: close-fitting, snug
    closely constrained or constricted or constricting
  10. adjective
    of textiles
    “a close weave”
    synonyms: tight
    of textures that are smooth to the touch or substances consisting of relatively small particles
  11. adjective
    used of hair or haircuts
    “a close military haircut”
    (primarily spatial sense) having little length or lacking in length
  12. adverb
    near in time or place or relationship
    “don't get too close to the fire”
    synonyms: near, nigh
  13. adverb
    in an attentive manner
    “he remained close on his guard”
    synonyms: closely, tight
  14. verb
    engage at close quarters
    close with the enemy”
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    type of:
    engage, prosecute, pursue
    carry out or participate in an activity; be involved in
  15. verb
    draw near
    “The probe closed with the space station”
  16. verb
    change one's body stance so that the forward shoulder and foot are closer to the intended point of impact
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    type of:
    move so as to change position, perform a nontranslational motion
  17. verb
    come together, as if in an embrace
    “Her arms closed around her long lost relative”
    synonyms: come together
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    type of:
    move so as to change position, perform a nontranslational motion
  18. verb
    bring together all the elements or parts of
    “Management closed ranks”
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    type of:
    bring together, join
    cause to become joined or linked
  19. verb
    unite or bring into contact or bring together the edges of
    close the circuit”
    close a wound”
    close a book”
    close up an umbrella”
    synonyms: close up
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    type of:
    bring together, join
    cause to become joined or linked
  20. verb
    move so that an opening or passage is obstructed; make shut
    Close the door”
    synonyms: shut
    become closed
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    open, open up
    cause to open or to become open
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    close with a snapping motion
    close the slats of (windows)
    bang, slam
    close violently
    close with shutters
    move or pull so as to cover or uncover something
    roll up
    close (a car window) by causing it to move up, as with a handle
    close with a cork or stopper
    seal, seal off
    make tight; secure against leakage
    seal again
    make watertight
    calk, caulk
    seal with caulking
    seal with packing
  21. verb
    become closed
    “The windows closed with a loud bang”
    synonyms: shut
    move so that an opening or passage is obstructed; make shut
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    open, open up
    become open
    type of:
    change state, turn
    undergo a transformation or a change of position or action
  22. verb
    bar access to
    “Due to the accident, the road had to be closed for several hours”
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    type of:
    bar, barricade, block, block off, block up, blockade, stop
    render unsuitable for passage
  23. verb
    fill or stop up
    “Can you close the cracks with caulking?”
    synonyms: fill up
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    close with or as if with a seal
    plug, secure, stop up
    fill or close tightly with or as if with a plug
    coapt, conglutinate
    cause to adhere
    stopper, stopple
    close or secure with or as if with a stopper
    plug with a tampon
    fill the chinks of, as with caulking
    cork, cork up
    close a bottle with a cork
    type of:
    plug with a substance
  24. verb
    cause a window or an application to disappear on a computer desktop
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    display the contents of a file or start an application as on a computer
    type of:
    end, terminate
    be the end of; be the last or concluding part of
  25. verb
    cease to operate or cause to cease operating
    “The owners decided to move and to close the factory”
    “My business closes every night at 8 P.M.”
    close up the shop”
    synonyms: close down, close up, fold, shut down
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    open, open up
    start to operate or function or cause to start operating or functioning
    adjourn, retire, withdraw
    break from a meeting or gathering
    adjourn by royal prerogative; without dissolving the legislative body
  26. noun
    the temporal end; the concluding time
    “they were playing better at the close of the season”
    synonyms: conclusion, finale, finis, finish, last, stopping point
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    type of:
    end, ending
    the point in time at which something ends
  27. noun
    the concluding part of any performance
    synonyms: closing curtain, finale, finis
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    type of:
    finish, finishing
    the act of finishing
  28. noun
    the last section of a communication
    synonyms: closing, conclusion, end, ending
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    anticlimax, bathos
    a change from a serious subject to a disappointing one
    afterword, epilog, epilogue
    a short section added at the end of a literary work
    epilog, epilogue
    a short speech (often in verse) addressed directly to the audience by an actor at the end of a play
    (rhetoric) the concluding section of an oration
    coda, finale
    the closing section of a musical composition
    type of:
    section, subdivision
    a self-contained part of a larger composition (written or musical)
  29. verb
    come to a close
    “The concert closed with a nocturne by Chopin”
    synonyms: conclude
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    type of:
    cease, end, finish, stop, terminate
    have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
  30. verb
    finish or terminate (meetings, speeches, etc.)
    “The meeting was closed with a charge by the chairman of the board”
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    begin or set in action, of meetings, speeches, recitals, etc.
    type of:
    end, terminate
    bring to an end or halt
  31. verb
    complete a business deal, negotiation, or an agreement
    “We closed on the house on Friday”
    “They closed the deal on the building”
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    type of:
    end, terminate
    bring to an end or halt
  32. verb
    be priced or listed when trading stops
    “The stock market closed high this Friday”
    “My new stocks closed at $59 last night”
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    type of:
    be traded at a certain price or under certain conditions
  33. verb
    finish a game in baseball by protecting a lead
    “The relief pitcher closed with two runs in the second inning”
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    type of:
    complete, finish
    come or bring to a finish or an end
  34. adjective
    lacking fresh air
    “the dreadfully close atmosphere”
    synonyms: airless, stuffy, unaired
    not ventilated
  35. adjective
    confined to specific persons
    “a close secret”
    confined to particular persons or groups or providing privacy
  36. adjective
    inclined to secrecy or reticence about divulging information
    “although they knew her whereabouts her friends kept close about it”
    synonyms: closelipped, closemouthed, secretive, tightlipped
    incommunicative, uncommunicative
    not inclined to talk or give information or express opinions
  37. adjective
    giving or spending with reluctance
    “very close (or near) with his money”
    synonyms: cheeseparing, near, penny-pinching, skinny
    stingy, ungenerous
    unwilling to spend
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