1 [singular] informal two things or people of the same type‘Has he had any serious girlfriends?’ ‘A couple.’couple of: A couple of police officers were standing at the door.Take a couple of aspirin – [..]

c. 1200, from Old French copler, from cople (see couple (n.)). Related: Coupled; coupling.

late 13c., from Old French cople "married couple, lovers" (12c., Modern French couple), from Latin copula "tie, connection," from PIE *ko-ap-, from *ko(m)- "together" + * [..]

to join two items.

two of something, or a pair.

a pair who associate with one another; "the engaged couple"; "an inseparable twosome" match: bring two objects, ideas, or people together; & [..]

You and your close relative who lives with you in a domestic relationship at the same address as you.

Two forces of equal magnitude acting in opposite directions in the same plane, but not along the same line.

Two equal, opposite and parallel forces which create rotational force.

pair of equal and opposite forces acting on a body but not along the same line

(n) a pair who associate with one another(n) a pair of people who live together(n) a small indefinite number(n) two items of the same kind(n) (physics) something joined by two equal and opposite force [..]

The transfer of energy from one circuit to another by means of the mutual capacitance between them. In feedback and control systems this is considered to be electrical noise and is a common problem.

Two hounds.

A cell developed in an electrolyte resulting from electrical contact between two dissimilar metals.

Two hounds.

n. "couple," s.v. couple sb. OED. KEY: couple@n

n 1 couples 1

Two partners in a romantic or sexual relationship. * '''1729''',(1616-1704) *: It is in some sort with friends as it is with dogs in couples; they should be of the same size and humour. *(1564-16 [..]