- 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, plans, institutions, people, etc.
Either of two similar or closely related objects, plans, institutions, people, etc.
- Either of two or more things, people, etc. that share a single feature.広義, 比喩的
- A friendly term of address, typically for men.広義, 俗語
Contains or comprises a pair
- A room in a hotel, guesthouse, etc. with two beds; a twin room.
- A twin crystal.
- A two-engine aircraft.
Refers to a specific size
- A twin-size mattress.米国
- A bed, set of sheets, etc., designed for a twin-size mattress.米国
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