The narrow portion that forms the pouring spout of a bottle; the neck of a bottle.
The part of a process that is too slow or cumbersome.
In traffic, any narrowing of the road, especially resulting in a delay.
To slow by causing a bottleneck.
To form a bottleneck.
A compression.
The act of constricting, the state of being constricted, or something that constricts.
A narrow part of something; a stricture.