You're going to have to read the Wikipedia article on work. I'm not going to regurgitate what it says.
Mmmm I'm concerned, that you, as a Physics Guru, missed the implications of "relatively" speaking.
Maybe if you moved on from Newtonian Physics and onto modern physics and explored exchange of energy you wouldn't have to be so rude.
Or is thrust only measured against the distance that the aircraft moves ref the earth?
Relatively speaking???