JMdict entry #2182920

1. noun (common) (futsuumeishi) Yezo (northern part of Meiji-era Japan, esp. Hokkaido, but also Sakhalin and the Kuril Islands)
2. noun (common) (futsuumeishi) Edo-period realm of the Ainu (as opposed to the Japanese) comprising most of Hokkaido
   see: 和人地