The noun couple has 5 senses (first 4 from tagged texts)
1. (242) couple -- (a small indefinite number; "he's coming for a couple of days")
2. (168) couple, mates, match -- (a pair of people who live together; "a married couple from Chicago")
3. (136) couple, twosome, duo, duet -- (a pair who associate with one another; "the engaged couple"; "an inseparable twosome")
4. (34) couple, pair, twosome, twain, brace, span, yoke, couplet, distich, duo, duet, dyad, duad -- (two items of the same kind)
5. couple -- ((physics) something joined by two equal and opposite forces that act along parallel lines)
Overview of verb couple
The verb couple has 4 senses (first 3 from tagged texts)
1. (5) match, mate, couple, pair, twin -- (bring two objects, ideas, or people together; "This fact is coupled to the other one"; "Matchmaker, can you match my daughter with a nice young man?"; "The student was paired with a partner for collaboration on the project")
2. (2) couple, couple on, couple up -- (link together; "can we couple these proposals?")
3. (1) pair, pair off, partner off, couple -- (form a pair or pairs; "The two old friends paired off")
4. copulate, mate, pair, couple -- (make love; "Birds mate in the Spring")