Waterspout and Whirlwind

Waterspout noun - A pipe or channel for carrying off water from a roof.

Whirlwind and waterspout are semantically related in cyclone topic. In some cases you can use "Whirlwind" instead a noun "Waterspout", when it comes to topics like whirlpool, circular current.

Whirlwind noun - A more or less vertical column of air whirling around itself as it moves over the surface of the Earth.

Waterspout and whirlwind are semantically related in cyclone topic. You can use "Waterspout" instead a noun "Whirlwind", if it concerns topics such as dust devil.