That which joins or links two things together; a bond or tie; a coupler.
A small number.
A couple-close.
Two partners in a romantic or sexual relationship.
One of the pairs of plates of two metals which compose a voltaic battery, called a voltaic couple or galvanic couple.
Two of the same kind connected or considered together.
A turning effect created by forces that sum to zero in magnitude but produce a non-zero external torque.
Two or (a) small number of.
To cause (two animals) to copulate, to bring (two animals) together for mating.
To join in sexual intercourse; to copulate.
To join (two things) together, or (one thing) to (another).
Two or a few, a small number of.
A pair or couple, especially one that is harmonious or elegant.
A musical composition in two parts, each performed by a single voice (singer, instrument or univoce ensemble).
A song composed for and/or performed by a duo.
To perform (sing, play, etc.) as a duet.
(of two people) To say at the same time, to chorus.
To perform a duet.
To communicate (warnings, mating calls, etc.) through song.