A loop knot made in the bight. Favoured by fishermen as quick and secure. Also known as fisherman's knot, English knot, Englishman's knot, water knot, waterman's knot.

plural of fisherman's loop

plural of time loop

(chiefly science fiction) A hypothetical or fictional instance of characters living through a set period of time repeatedly until the loop can be broken.

A long, narrow, vertical opening, usually widening inward, cut in a medieval wall, parapet, or fortification, for use by archers.

(rail transport) A loop provided for the purpose of turning a train or tram round to face in the opposite direction. The vehicles themselves do not have to reverse.

plural of reversing loop

plural of platform loop

(rail transport) A short stretch of railway line at a railway station which leaves a through line to serve a platform, before rejoining the through line beyond the station.

(rail transport) A secondary route which leaves a mainline, following a different route to the main line, before rejoining it several miles further on.