Sluiceway as a noun is a man-made channel designed to redirect excess water while Penstock as a noun is a sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.
Part of speech: noun
Definition: a man-made channel designed to redirect excess water
Part of speech: noun
Definition: A sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.
We hope you now know whether to use Sluiceway or Penstock in your sentence.