下総しもうさしもうさFreq.FrequencyTop 50,000Meanings1nounShimōsa (former province)historical termHistorical province name; now used mainly in historical contexts or as a regional reference.下総しもうさは、現げん在ざいの千ち葉ば県けん北ほく部ぶと茨いばら城き県けん南なん部ぶにあたる旧きゅう