onega one-fourth • onegite · · · Info · Definitions · Characters · · onega · · Text Latin · · Script 5 · · Length 3 · · Syllables Definitions · · · (noun) lake in northwestern Russia near the border with Finland; second largest lake in Europe. Synonyms: Lake Onega, Onega. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 n latin small letter n U+006E o latin small letter o U+006F