See also: Oceanus Latin Latin Wikipedia has an article on:oceanusWikipedia la Etymology Borrowed from Ancient Greek ὠκεᾰνός m (ōkeănós). Pronunciation (Classical Latin) IPA(key): /oːˈke.a.nus/, [oːˈkeänʊs̠] (modern Italianate Ecclesiastical) IPA(key): /oˈt͡ʃe.a.nus/, [oˈt͡ʃɛːänus] Noun ōceanus m (genitive ōceanī); second declension ocean, sea Synonyms: mare n, pontus m (Medieval Latin) any large body of water, including a channel or river (Can we add an example for this sense?) Declension Second-declension noun.More information singular, plural ... singular plural nominative ōceanus ōceanī genitive ōceanī ōceanōrum dative ōceanō ōceanīs accusative ōceanum ōceanōs ablative ōceanō ōceanīs vocative ōceane ōceanī Close Derived terms Ōceanus Ā̆tlanticusŌceanus BritannicusŌceanus GermānicusŌceanus PācificusŌceanus Vergivius Related terms Ōceanus m Descendants Catalan: oceà French: océan m Friulian: ocean Italian: oceano Occitan: ocean m Piedmontese: ocean Romanian: ocean n Sicilian: ucèanu Spanish: océano → Basque: ozeano → Dutch: oceaan → English: ocean → Galician: océano → German: Ozean → Old Irish: océnIrish: aigéanScottish Gaelic: aigeann → Portuguese: oceano → Welsh: eigion Further reading “oceanus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press Wikiwand - on Seamless Wikipedia browsing. On steroids.