mainland; the country proper
native country; country where one was born
《Buddhism》pure land; Buddha realm
本土から離島へ船で向かう。
I head from the mainland to a remote island by boat.
沖縄と本土では気候が大きく異なる。
The climate differs greatly between Okinawa and the mainland.
本土に戻るのは来月の後半になりそうだ。
It looks like I'll return to the mainland in the latter half of next month.