Definition of Twin

1. Noun. Either of two offspring born at the same time from the same pregnancy.

2. Verb. Duplicate or match. "The polished surface twinned his face and chest in reverse"
Exact synonyms: Duplicate, Parallel
Generic synonyms: Agree, Check, Correspond, Fit, Gibe, Jibe, Match, Tally

3. Adjective. Being two identical.
Exact synonyms: Duplicate, Matching, Twinned
Similar to: Matched

4. Noun. (astrology) a person who is born while the sun is in Gemini.
Exact synonyms: Gemini
Generic synonyms: Individual, Mortal, Person, Somebody, Someone, Soul
Category relationships: Astrology, Star Divination

5. Verb. Bring two objects, ideas, or people together. "The student was paired with a partner for collaboration on the project"
Exact synonyms: Couple, Match, Mate, Pair
Related verbs: Match
Specialized synonyms: Mismate, Mismatch
Generic synonyms: Bring Together, Join
Derivative terms: Couple, Coupling, Match, Match, Mate, Pair, Pair

6. Noun. A waterfall in the Snake River in southern Idaho.
Exact synonyms: Twin Falls
Group relationships: America, The States, U.s., U.s.a., United States, United States Of America, Us, Usa, Snake, Snake River
Generic synonyms: Falls, Waterfall

7. Verb. Grow as twins. "Twin crystals"
Generic synonyms: Grow

8. Noun. A duplicate copy.
Exact synonyms: Counterpart, Similitude
Generic synonyms: Duplicate, Duplication

9. Verb. Give birth to twins.
Generic synonyms: Bear, Birth, Deliver, Give Birth, Have

Definition of Twin

1. a. Being one of two born at a birth; as, a twin brother or sister.

2. n. 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.

3. v. i. To bring forth twins.

4. v. t. To cause to be twins, or like twins in any way.

5. v. i. To depart from a place or thing.

Definition of Twin

1. Noun. Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling. ¹

2. Noun. Either of two similar or closely related objects, entities etc. ¹

3. Noun. A room in a hotel, guesthouse, etc. with two beds; a twin room ¹

4. Noun. (American English) A twin size mattress or a bed designed for such a mattress. ¹

5. Noun. A twin crystal. ¹

6. Noun. (context: modifier) Forming a pair of twins. ¹

7. Noun. (context: modifier) Forming a matched pair. ¹

8. Verb. (transitive obsolete except Scotland) To separate, divide. ¹

9. Verb. (intransitive obsolete except Scotland) To split, part; to go away, depart. ¹

10. Verb. (context: usually in the passive) To join, unite; to form links between (now especially of two places in different countries). ¹

11. Verb. (intransitive) To give birth to twins. ¹

¹ Source:

Definition of Twin

1. to bring together in close association [v TWINNED, TWINNING, TWINS]

Medical Definition of Twin

1. 1. Being one of two born at a birth; as, a twin brother or sister. 2. Being one of a pair much resembling one another; standing the relation of a twin to something else; often followed by to or with. 3. Double; consisting of two similar and corresponding parts. 4. Composed of parts united according to some definite law of twinning. See Twin. Twin boat, or Twin ship, a vessel whose deck and upper works rest on two parallel hulls. Twin crystal. See Twin. Twin flower, 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. Origin: 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. 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. 2. A sign and constellation of the zodiac; Gemini. See Gemini. 3. A person or thing that closely resembles another. 4. A compound crystal composed of two or more crystals, or parts of crystals, in reversed position with reference to each other. 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. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Twin

twill weave
twin (current term)
twin-aisle airplane
twin-clutch gearbox
twin-twin transfusion
twin bed
twin beds

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