halfclosed

closed

[klohzd]
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.
a.
(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.
b.
(of an interval) containing both of its endpoints.
c.
(of a map from one topological space to another) having the property that the image of a closed set is a closed set.
d.
(of a curve) not having endpoints; enclosing an area.
e.
(of a surface) enclosing a volume.
f.
(of a function or operator) having as its graph a closed set.

Origin:
1175–1225; Middle English; see close, -ed2

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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Collins
World English Dictionary
closed (kləʊzd)
 
adj
1.  blocked against entry; shut
2.  restricted; exclusive
3.  not open to question or debate
4.  (of a hunting season, etc) close
5.  maths
 a.  (of a curve or surface) completely enclosing an area or volume
 b.  (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
 a.  denoting a syllable that ends in a consonant
 b.  another word for close
7.  not open to public entry or membership: the closed society of publishing

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

close
c.1200, "to shut, cover in," from O.Fr. clos- pp. stem of clore "shut," from L. clausus, pp. of claudere "to close, block up, put an end to, enclose, confine," from PIE base *klau- "hook, crooked or forked branch" (used as a bar or bolt in primitive structures); cf. L. clavis "key," clavus "nail," claustrum
"bar, bolt, barrier," claustra "dam, wall, barricade, stronghold;" Gk. kleidos "bar, bolt, key," klobos "cage;" O.Ir. clo "nail;" O.C.S. kljucu "hook, key," kljuciti "shut;" Lith. kliuti "to catch, be caught on," kliaudziu "check, hinder," kliuvu "clasp, hang;" O.H.G. sliozan "shut," Ger. schließen "shut," Schüßel "key;" M.Ir. clithar "hedge, fence." Replaced O.E. beclysan.

close
early 14c., "strictly confined," also "secret," from O.Fr. clos "confined," from L. clausus, pp. of claudere "stop up, fasten, shut" (see close (v.)); sense shifting to "near" (late 15c.) by way of "closing the gap between two things." Close call is 1881; close shave is 1834;
close quarters is 1753, originally nautical. Close-up (n.) in photography, etc., is from 1913. Closed circuit is attested from 1827; closed shop in union sense from 1904; closed system first recorded 1896 in William James; close-minded is attested from 1854.
Online Etymology Dictionary, © 2010 Douglas Harper
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