coastal inlet sound A large sea or ocean inlet larger than a bay, deeper than a bight, wider than a fjord, or it may identify a narrow sea or ocean channel between two bodies of land. ENVO ENVO:00000393 EcoLexicon:sound FTT:233 FTT:469 Geonames:H.SD SWEETRealm:Sound TGN:21129 channel inlet lake open sound sound sound (body of water) watercourse