noun:the rear surface of the human body from the shoulders to the hips
He had a small tattoo on his back.
noun:the part of something that is opposite the front; the rear side
Please write your name on the back of the form.
verb:to move backwards
She had to back the car out of the narrow driveway.
verb:to support or give help to
Her family will back her decision to start a business.
adjective:located at or near the rear
They entered through the back door.
adverb:in return; in reply
She smiled back at him.
adjective:returning to a place, condition, or previous state
She is back in the office after her month‑long vacation.
