Added 10 October 2026 fishway noun Categories: Obscure Words noun ! Definition from Wiktionary (CC BY-SA). More about fishway at Wordnik → Where our words come from → A structure built on or around dams or locks to facilitate the migration of fish. Origin From fish + way. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: migratorymigrationfishweirweirhatchburrockgarthfishpound Back to today's word