一体
ittai
(1) one object, one body, (2) what on earth?, really?, (3) generally
Example sentences
彼が病気だというのは一体本当だろうか。
Can it be true that he is ill?
鉄道の道筋を決めるのは一体何だろうか。
What is it that determines the route a railway takes?
常識のある人なら、一体誰がそんなことを信じようか。
Who that has common sense can believe it?