Vocab InfoA18 Noun海溝(かいこう)trench, ocean trenchDetailsExamples海溝trench, ocean trenchDetailsExamplesDictionary DefinitionCommonNoun1. oceanic trench, deep-sea trench, deepAll Forms海溝 【かいこう】DetailsAudioPlayExamplesThere are no sentences available for this contentHold tight, context sentences are coming soon!Self-Study SentencesStudy your own way!Add sentences and study them alongside Bunpro sentences.Try Bunpro