1.That which joins or links two things together; a bond or tie; a coupler. (Obs.) "It is in some sort with friends as it is with dogs in couples; they should be of the same size and humor." "I'll go in couples with her."
2.Two of the same kind connected or considered together; a pair; a brace. "A couple of shepherds." "A couple of drops" "A couple of miles." "A couple of weeks." "Adding one to one we have the complex idea of a couple." "(Ziba) met him with a couple of asses saddled."
3.A male and female associated together; esp., a man and woman who are married or betrothed. "Such were our couple, man and wife." "Fair couple linked in happy, nuptial league."
5.(Elec.) One of the pairs of plates of two metals which compose a voltaic battery; called a voltaic couple or galvanic couple.
6.(Mech.) Two rotations, movements, etc., which are equal in amount but opposite in direction, and acting along parallel lines or around parallel axes. Note: The effect of a couple of forces is to produce a rotation. A couple of rotations is equivalent to a motion of translation.
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