"couplings" 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"
Source: WordNet® (An amazing lexical database of English)
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