Caddoan Caddo • caddow · · · Info · Definitions · Characters · · Caddoan · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a family of North American Indian languages spoken widely in the Midwest by the Caddo. Synonyms: Caddo, Caddoan language. · · Noun Definition 1 Characters · · C latin capital letter c U+0043 a latin small letter a U+0061 d latin small letter d U+0064 n latin small letter n U+006E o latin small letter o U+006F