| noun | a pair who associate with one another “the engaged couple” |
| noun | a pair of people who live together “a married couple from Chicago” |
| noun | a small indefinite number “he's coming for a couple of days” |
| noun | two items of the same kind |
| noun | (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” |
| verb | link together “can we couple these proposals?” |
| verb | form a pair or pairs “The two old friends paired off” |
| verb | engage in sexual intercourse “Birds mate in the Spring” |
| couple | verb | form a pair or pairs |
| match | verb | give or join in marriage |
| pair | verb | arrange in pairs |
| match | noun | a pair of people who live together |
| mate | noun | an exact duplicate |
| couple | noun | two items of the same kind |
| coupling | noun | a connection (like a clamp or vise) between two things so they move together |
| pair | noun | two people considered as a unit |
| coupler | noun | a mechanical device that serves to connect the ends of adjacent objects |
| pairing | noun | the act of grouping things or people in pairs |
| copulatory | adjective | of or relating to coitus or copulation |
| copulation | noun | the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur |
| mating | noun | the act of pairing a male and female for reproductive purposes |