From WordNet (r) 2.0 (August 2003) [wn]:
twin
adj 1: being two identical [syn: duplicate, matching,
{twin(a)}, twinned]
2: very similar [syn: siamese]
n 1: either of two offspring born at the same time from the same
pregnancy
2: (astrology) a person who is born while the sun in in Gemini
[syn: Gemini, Twin]
3: a waterfall in the Snake River in southern Idaho [syn:
Twin, Twin Falls]
4: a duplicate copy [syn: counterpart, similitude]
v 1: duplicate or match; "The polished surface twinned his face
and chest in reverse" [syn: duplicate, parallel]
2: bring two objects, ideas, or people together; "This fact is
coupled to the other one"; "Matchmaker, can you match my
daughter with a nice young man?"; "The student was paired
with a partner for collaboration on the project" [syn:
match, mate, couple, pair]
3: grow as twins; "twin crystals"
4: give birth to twins
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Twin \Twin\, v. i. [imp. & p. p. Twinned; p. pr. & vb. n.
Twinning.]
1. To bring forth twins. --Tusser.
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2. To be born at the same birth. --Shak.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Twin \Twin\, v. t.
1. To cause to be twins, or like twins in any way. --Shak.
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Still we moved
Together, twinned, as horse's ear and eye.
--Tennyson.
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2. To separate into two parts; to part; to divide; hence, to
remove; also, to strip; to rob. [Obs.]
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The life out of her body for to twin. --Chaucer.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Twin \Twin\, n.
1. One of two produced at a birth, especially by an animal
that ordinarily brings forth but one at a birth; -- used
chiefly in the plural, and applied to the young of beasts
as well as to human young.
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2. pl. (Astron.) A sign and constellation of the zodiac;
Gemini. See Gemini.
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3. A person or thing that closely resembles another.
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4. (Crystallog.) A compound crystal composed of two or more
crystals, or parts of crystals, in reversed position with
reference to each other.
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Note: The relative position of the parts of a twin may be
explained by supposing one part to be revolved 180[deg]
about a certain axis (called the twinning axis), this
axis being normal to a plane (called the twinning
plane) which is usually one of the fundamental planes
of the crystal. This revolution brings the two parts
into parallel position, or vice versa. A contact twin
is one in which the parts are united by a plane
surface, called the composition face, which is usually
the same as the twinning plane. A penetration twin is
one in which the parts interpenetrate each other, often
very irregularly. Twins are also called, according to
form, cruciform, geniculated, etc.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Twin \Twin\, v. i.
To depart from a place or thing. [Obs.] "Ere that we farther
twin." --Chaucer.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Twin \Twin\ (tw[i^]n), a. [OE. twin double, AS. getwinne two and
two, pl., twins; akin to D. tweeling a twin, G. zwilling,
OHG. zwiniling, Icel. tvennr, tvinnr, two and two, twin, and
to AS. twi- two. See Twice, Two.]
1. Being one of two born at a birth; as, a twin brother or
sister.
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2. Being one of a pair much resembling one another; standing
in the relation of a twin to something else; -- often
followed by to or with. --Shak.
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3. (Bot.) Double; consisting of two similar and corresponding
parts.
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4. (Crystallog.) Composed of parts united according to some
definite law of twinning. See Twin, n., 4.
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Twin boat, or Twin ship (Naut.), a vessel whose deck and
upper works rest on two parallel hulls.
Twin crystal. See Twin, n., 4.
Twin flower (Bot.), a delicate evergreen plant ({Linnaea
borealis}) of northern climates, which has pretty,
fragrant, pendulous flowers borne in pairs on a slender
stalk.
Twin-screw steamer, a steam vessel propelled by two screws,
one on either side of the plane of the keel.
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