COUPLING n.
A device or contrivance which serves to couple or connect adjacent parts or objects; as, a belt coupling, which connects the ends of a belt; a car coupling, which connects the cars in a train; a shaft coupling, which connects the ends of shafts. Box coupling, Chain coupling. See under Box, Chain. -- Coupling box, a co…
CRANNY n.
A small, narrow opening, fissure, crevice, or chink, as in a wall, or other substance. In a firm building, the cavities ought not to be filled with rubbish, but with brick or stone fitted to the crannies. Dryden. He peeped into every cranny. Arbuthnot.