couple
noun
a pair who associate with one another
“the engaged couple”
“an inseparable twosome”
a pair of people who live together
“a married couple from Chicago”
a small indefinite number
“he's coming for a couple of days”
two items of the same kind
(physics) something joined by two equal and opposite forces that act along parallel lines
verb
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?”
link together
“can we couple these proposals?”
Oppositesuncoupleform a pair or pairs
“The two old friends paired off”
engage in sexual intercourse
“Birds mate in the Spring”
Source: WordNet 3.1, Princeton University