The rear surface or part of something, especially the part opposite to the front. noun
He turned his back to the audience.
The book's cover was torn at the back.
The part of a person's or animal's body that is opposite to the chest and extends from the neck to the lower end of the spine. noun
She lay on her back to look at the stars.
He injured his back while lifting heavy boxes.
To support or endorse someone or something. verb
I will back your decision no matter what.
The company backed the new project with additional funding.
To move or cause to move backward. verb
He backed the car into the garage.
She backed away from the aggressive dog.
Situated or positioned at the rear. adjective
The back door was left open.
They sat in the back row of the theater.
In a reverse direction or returning to a previous state or condition. adverb
He went back to his hometown after many years.
She gave the book back to the library.