rengaPronunciation: /ˈrɛŋgə/Definition of renga noun (plural same or rengas) a Japanese poem in the form of a tanka (or series of tanka), with the first three lines composed by one person and the second two by another. Origin:Japanese, from ren 'linking' + ga (from ka 'poetry')renga in other Oxford dictionaries Definition of renga in the US English dictionary