"coupled" 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
"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"
"coupled" in the adjective sense
1. conjugate, conjugated, coupled
joined together especially in a pair or pairs
2. coupled, joined, linked
connected by a link, as railway cars or trailer trucks
Source: WordNet® (An amazing lexical database of English)
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