back-up weld

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.

up Preposition

— Toward the top or toward the sky. The balloon went up.

up Adjective

— In a high position. The flag is up. — . It was an up day. — optimistic. He is feeling up. — Put in trust, entrusted. It is up to you. — ing, occurring. What’s up? They act like something is up. — . Something is up with him. — Planning, plotting mischief. He is up to something. — ed. It is all up with them.

up Noun

— State of being up, often with down. Life has its ups and downs.

up Verb

— Increase, increment. We upped the dosage.

weld Verb

— If two things are welded together, they are joined together, usually using metal. The workers welded a piece of steel to the bridge. — If you weld two things, you bring them together very closely.

weld Noun

— A weld is the piece of metal that joins two things together.