plural of couplet

plural of acoustic coupler

An interface device for coupling electrical signals by acoustical means. / (dated, telecommunications) A terminal device used to link data terminals and radio sets with the telephone network.

(now rare) Someone who couples things together, especially someone whose job it is to couple railway carriages.

plural of coupler

The world or sphere of romantic couples. / The state of being a romantic couple.

(informal) Pertaining to romantic couples.

plural of couplement

(obsolete) union; combination; a coupling; a pair

plural of couplezilla