1. A mechanical device that serves to connect the ends of adjacent objects
   "The train cars were joined using a sturdy coupling";
   - coupler
    
2. A connection (like a clamp or vice) between two things so they move together
   "The coupling connected the two machine parts, ensuring synchronized movement";
   - yoke
    
3. The act of pairing a male and female for reproductive purposes
   "the casual couplings of adolescents";
   - mating, pairing, conjugation, union, sexual union

1. Bring two objects, ideas, or people together
   "This fact is coupled to the other one";
   - match, mate, pair, twin
    
2. Link together
   "can we couple these proposals?"; "They coupled on the additional train cars"; "The train cars were coupled up before departure";
   - couple on, couple up
    
3. Form a pair or pairs
   "The two old friends coupled off";
   - pair, pair off, partner off
    
4. Engage in sexual intercourse
   "Birds couple in the spring";
   - copulate, mate, pair

Derived forms: couplings

Type of: attach, conjoin [formal], connecter, connection, connective, connector, connexion [Brit], join, mechanical device, sex, sex activity, sexual activity, sexual practice, unify, unite

Antonym: decouple

Encyclopedia: Coupling