Bottleneck and Straits

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

Straits and bottleneck are semantically related In some cases you can replace term "Straits" with "Bottleneck", this nouns are similar.

Straits noun - A difficult juncture.

Bottleneck and straits are semantically related in crisis topic. Sometimes you can use "Bottleneck" instead a noun "Straits".