Jam and Obstruction

Jam noun - A crowded mass (as of cars) that impedes or blocks movement.

Obstruction and jam are semantically related in tailback topic. In some cases you can use "Obstruction" instead a noun "Jam".

Nearby Word: jamming

Obstruction noun - Something that makes movement or progress difficult.

Jam and obstruction are semantically related in obstacle topic. Sometimes you can use "Jam" instead a noun "Obstruction".

Nearby Words: obstruct, obstructed, obstructive, obstructing, obstructionist