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[klohzd] /kloʊzd/
having or forming a boundary or barrier:
He was blocked by a closed door. The house had a closed porch.
brought to a close; concluded:
It was a closed incident with no repercussions.
not public; restricted; exclusive:
a closed meeting; a closed bid at a private auction.
not open to new ideas or arguments.
self-contained; independent or self-sufficient:
a closed, symbiotic relationship.
Phonetics. (of a syllable) ending with a consonant or a consonant cluster, as has, hasp.
Compare open (def 35b).
Linguistics. (of a class of items) limited in membership and not readily expanded to include new items, as the class of inflectional affixes, articles, pronouns, or auxiliaries (opposed to open).
Hunting, Angling. restricted as to the kind of game that may be legally taken and as to where or when it may be taken:
woods closed to deer hunters.
  1. (of a set in which a combining operation between members of the set is defined) such that performing the operation between members of the set produces a member of the set, as multiplication in the set of integers.
  2. (of an interval) containing both of its endpoints.
  3. (of a map from one topological space to another) having the property that the image of a closed set is a closed set.
  4. (of a curve) not having endpoints; enclosing an area.
  5. (of a surface) enclosing a volume.
  6. (of a function or operator) having as its graph a closed set.
Origin of closed
Middle English word dating back to 1175-1225; See origin at close, -ed2
Related forms
half-closed, adjective
semiclosed, adjective
well-closed, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for half-closed
Historical Examples
  • With half-closed eyes, Dick continued as if the other man had never left him.

    Ambrotox and Limping Dick Oliver Fleming
  • Gleaming in the half-closed eye of the sailor-lad, it awoke him.

    The Ocean Waifs Mayne Reid
  • "Have I not said it," replied the woman, regarding him stealthily from under her half-closed lashes.

    Mabel's Mistake Ann S. Stephens
  • The girl looked past her at the panels of the half-closed door.

    The Good Soldier Ford Madox Ford
  • Mother Goodhugh had not moved, but lay in a kind of stupor with half-closed eyes, Gil sitting near and dreaming over the past.

    Sweet Mace George Manville Fenn
  • The taxicab moved on, and the Bishop's eyes for a moment were half-closed.

    The Devil's Paw E. Phillips Oppenheim
  • Then gaze at the fingers through narrowed eyelids, and half-closed eyes.

  • The elder man lay back and looked at him with half-closed eyes.

  • Then she turned and with head thrown back, with silent, trembling lips and half-closed eyes she walked slowly out of the room.

    Petticoat Rule Emmuska Orczy, Baroness Orczy
  • He arose and watched them through the half-closed jalousies.

    Tony Butler Charles James Lever
British Dictionary definitions for half-closed


partially closed: with half-closed eyes


blocked against entry; shut
restricted; exclusive
not open to question or debate
(of a hunting season, etc) close
  1. (of a curve or surface) completely enclosing an area or volume
  2. (of a set) having members that can be produced by a specific operation on other members of the same set: the integers are a closed set under multiplication
(phonetics) Also checked
  1. denoting a syllable that ends in a consonant
  2. another word for close1 (sense 21)
not open to public entry or membership: the closed society of publishing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for half-closed



c.1200, past participle adjective from close (v.). Closed circuit is attested from 1827; closed shop in union sense from 1904; closed system first recorded 1896 in William James.

Online Etymology Dictionary, © 2010 Douglas Harper
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