Bottleneck and Troat

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

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

Troat verb - Emit a cry intended to attract other animals; used especially of animals at rutting time.

Bottleneck and troat are semantically related. You can use "Bottleneck" instead a noun "Troat".