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
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")
couple, couple on, couple up -- (link together; "can we couple these proposals?")
pair, pair off, partner off, couple -- (form a pair or pairs; "The two old friends paired off")
copulate, mate, pair, couple -- (engage in sexual intercourse; "Birds mate in the Spring")