deep-sea Pronunciation: /ˈdiːpˈsiː/Translate deep-sea | into French | into Italian Spanish translation of deep-seaadj (before n) deep-sea diving = buceo (m) de altura or en alta mar deep-sea fishing = pesca (f) de alturadeep-sea in other Oxford dictionaries Definition of deep-sea in the British & World English dictionary Definition of deep-sea in the US English dictionary