A block or obstruction of traffic caused by the overcrowding of vehicles.

A ‘block’ of the traffic in a street.

A locking together or interlocking. Also: a crowded mass (of things, esp. vehicles); a jam.

A blocking up. An obstruction or stoppage of traffic or progress.

(a) Mathematics a point at which a surface touches itself tangentially; (b) a point of congestion, confusion, or difficulty; esp. a place on a…

A stoppage of work or business, esp. on account of a lock-out or strike; a stoppage of transport, a traffic hold-up. Originally and chiefly U.S.

a situation in which the flow of road traffic is obstructed (e.g. by an accident or roadworks), causing a build-up of stationary or slow-moving…

a traffic jam; = traffic snarl-up n.

figurative or in figurative context. traffic snarl (U.S. colloquial), a traffic jam.

a traffic jam; = traffic snarl n.

Medicine. The formation of a thrombus or thrombi within a blood vessel or the heart, often resulting in impairment or obstruction of blood flow; an…

A muddle, state of confusion; a mistake; a traffic jam; a blockage. Also attributive.

An accumulation or tail-back of motor traffic, as behind an obstruction. Cf. back, v. additions e. North American colloquial.

a queue of stationary or slowly moving motor vehicles.

A state of severe road congestion arising when continuous queues of vehicles block an entire network of intersecting streets, bringing traffic in…