noun. a channel through which water is discharged (especially one used for drainage from the gutters of a roof).
noun. a heavy rain.
noun. a tornado passing over water and picking up a column of water and mist.
1. Noun, singular or mass It should have a waterspout or hose that you can easily aim at your screen. 2. Preposition or subordinating conjunction Use heading cuts on wood that is one year old but no older or you will stimulate waterspout formation.