Added 9 October 2026 sluiceway noun Categories: ThingsObscure Words noun ! Definition from Wiktionary (CC BY-SA). More about sluiceway at Wordnik → Where our words come from → A man-made channel designed to redirect excess water. Origin From sluice + way. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: sluicepenstockcloughwashwaysluicegatesaddlewastewayflumeslewswaledrovegutter Back to today's word