Added 10 October 2026 drainage /ˈdɹeɪnəd͡ʒ/ noun Categories: ActionsEveryday Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about drainage at Wordnik → Where our words come from → A natural or artificial means for the removal of fluids from a given area by its draining away. A system of drains. A downward wind. Related Words: drainpooldewateringstreamflowsumpsewerpondsewagenullahcatchmentstormwaterwatercourse Back to today's word