scheme behind one’s back

scheme Noun

— A scheme is a plan, sometimes a bad or dishonest one. The new training scheme will be targeted at recent graduates. Employees still participate in the company's pension scheme during the duration of their break. The management had various schemes to control the workers. The color scheme for the bedroom is blue and white.

behind Preposition

— When something is behind a second thing, the first thing is in back of the second. The ball is behind the box. — When something is behind, it is toward the rear. The man stayed behind. — A thing is behind when it happened in the past. We left that worry behind.

behind Noun

— The rear, back-end. — Bottom, downside. — Your behind is your butt, the buttocks, or bum. He was told he would get a kick on the behind if he kept being naughty — In Australian Rules Football, a behind is the same as one point, scored if the ball goes between the tall goal post and the short behind post. He tried to kick a goal, but the ball went wide and he only got a behind.

back Preposition

— Toward the rear. He went back behind the stands. — To a place again. I didn't like it, so I sent it back. He went back to the same house. They came back again.

back Noun

— The back is the rear part of something; it is the part in the other direction from the front. I went to the back of the house. — The back is the rear part of the human body. He had a scar on his back.

back Verb

— If you back something, you support it. The Republicans backed the bill. — If you back up, you move backward. He put the car in gear and backed right into the garage door.