A (romantic) date that two couples go on together.
To go on a double date.
An official or social occasion.
What something does or is used for.
The physiological activity of an organ or body part.
A routine that receives zero or more arguments and may return a result.
The role of a social practice in the continued existence of the group.
A party.
The characteristic behavior of a chemical compound.
A relation in which each element of the domain is associated with exactly one element of the codomain.
A professional or official position.
A relation where one thing is dependent on another for its existence, value, or significance.
Something which is dependent on or stems from another thing; a result or concomitant.
To have a function.
To carry out a function; to be in action.