congestion

noun

1. (countable, uncountable)The hindrance or blockage of the passage of something, for example a fluid, mixture, traffic, people, etc. (due to an excess of this or due to a partial or complete obstruction), resulting in overfilling or overcrowding.

   “network congestion”

2. (countable, uncountable)The hindrance or blockage of the passage of something, for example a fluid, mixture, traffic, people, etc. (due to an excess of this or due to a partial or complete obstruction), resulting in overfilling or overcrowding.

   “arterial congestion”

   “venous congestion”

   “congestion of the lungs”

3. (countable, uncountable)An excess or accumulation of something.

   “traffic congestion”

   “The crossing caused serious congestion with long traffic hold-ups, and had been a bone of contention between the local authorities and the railway for over eighty years. It was controlled from Fletton Road Junction Signalbox (removed at the same time) and, until a wheel was installed in 1920, required two gatemen on each turn of duty.”

4. (countable, uncountable)An excess or accumulation of something.
5. (countable, uncountable)An excess or accumulation of something.