COSTANOAN LANGUAGE(noun)Did you mean?Synonyms RhymesDefinitions There is 1 meaning of the phrase Costanoan Language. Costanoan Language - as a noun A penutian language spoken by the costanoan Synonyms (Exact Relations)costanoanWord Variations & RelationsStarts CStarts COStarts COSStarts COSTEnds EEnds GEEnds AGEEnds UAGEStarts C & ends EStarts CO & ends EStarts C & ends GEA-Z Proximitiescostalgia12costalgias13costally13costals9costanoan Costanoan Language costar8costard10costardmonger19costardmongers20costards11