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closed

[klohzd] /kloʊzd/
adjective
1.
having or forming a boundary or barrier:
He was blocked by a closed door. The house had a closed porch.
2.
brought to a close; concluded:
It was a closed incident with no repercussions.
3.
not public; restricted; exclusive:
a closed meeting; a closed bid at a private auction.
4.
not open to new ideas or arguments.
5.
self-contained; independent or self-sufficient:
a closed, symbiotic relationship.
6.
Phonetics. (of a syllable) ending with a consonant or a consonant cluster, as has, hasp.
Compare open (def 35b).
7.
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).
8.
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.
9.
Mathematics.
  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
1175-1225
1175-1225; Middle English; see close, -ed2
Related forms
half-closed, adjective
semiclosed, adjective
well-closed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for wellclosed

closed

/kləʊzd/
adjective
1.
blocked against entry; shut
2.
restricted; exclusive
3.
not open to question or debate
4.
(of a hunting season, etc) close
5.
(maths)
  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
6.
(phonetics) Also checked
  1. denoting a syllable that ends in a consonant
  2. another word for close1 (sense 21)
7.
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 wellclosed

closed

adj.

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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