twin

English

/twɪn/

noun
Definitions
  • 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.
  • Either of two similar or closely related objects, entities etc.
  • A room in a hotel, guesthouse, etc. with two beds; a twin room.
  • (US) A twin size mattress or a bed designed for such a mattress.
  • (crystallography) A twin crystal.

Etymology

Inherited from Middle English twinne inherited from Old English ġetwin inherited from Proto-Germanic *twinjaz derived from Proto-Indo-European *dwino- (twin).

Origin

Proto-Indo-European

*dwino-

Gloss

twin

Timeline

Distribution of cognates by language

Geogrpahic distribution of cognates

Cognates and derived terms