"coupling" in the noun sense
1. yoke, coupling
a connection (like a clamp or vise) between two things so they move together
2. coupling, coupler
a mechanical device that serves to connect the ends of adjacent objects
3. coupling, mating, pairing, conjugation, union, sexual union
the act of pairing a male and female for reproductive purposes
"the casual couplings of adolescents"
"the mating of some species occurs only in the spring"
"coupling" in the verb sense
1. 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. couple, couple on, couple up
link together
"can we couple these proposals?"
3. pair, pair off, partner off, couple
form a pair or pairs
"The two old friends paired off"
4. copulate, mate, pair, couple
engage in sexual intercourse
"Birds mate in the Spring"
Source: WordNet® (An amazing lexical database of English)
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