The sexual activity of conceiving and bearing biological offspring
The process by which an organism produces others of its biological kind
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.
A twin size mattress or a bed designed for such a mattress.
A room in a hotel, guesthouse, etc. with two beds; a twin room.
A twin crystal.
Either of two similar or closely related objects, entities etc.
A two-engine aircraft.
To split, part; to go away, depart.
To separate, divide.
To join, unite; to form links between (now especially of two places in different countries); to pair with.
To be, or be like, a pair of twins (for example, to dress identically); to be paired or suited.
To give birth to twins.
To be, or be like, a twin to (someone else); to match in some way.
Forming a pair of twins.
Double; dual; occurring as a matching pair.