couple

Link together.

“can we couple these proposals?”

Form a pair or pairs.

Engage in sexual intercourse.

Bring two objects, ideas, or people together.

“This fact is coupled to the other one”

Two items of the same kind.

A pair who associate with one another.

“the engaged couple”

A pair of people who live together.

“a married couple from Chicago”

A small indefinite number.

“he's coming for a couple of days”

(physics) something joined by two equal and opposite forces that act along parallel lines.