n. (American football) the position of a player on a football team who is stationed behind the line of scrimmage

n. the part of a garment that covers the back of your body; "they pinned a `kick me' sign on his back"

n. a support that you can lean against while sitting; "the back of the dental chair was adjustable"

n. the side that goes last or is not normally seen; "he wrote the date on the back of the photograph"

n. the posterior part of a human (or animal) body from the neck to the end of the spine; "his back was nicely tanned"

n. the part of something that is furthest from the normal viewer; "he stood at the back of the stage"; "it was hidden in the rear of the store"

n. (football) a person who plays in the backfield

n. [the posterior part of a body from the neck to the end of the spine]

n. a button in a web browser or web page that takes you to the previous page or section when pressed

v. place a bet on; "Which horse are you backing?"; "I'm betting on the new horse"

v. travel backward; "back into the driveway"; "The car backed up and hit the tree"

v. cause to travel backward; "back the car into the parking spot"

v. strengthen by providing with a back or backing

v. be behind; approve of; "He plumped for the Labor Party"; "I backed Kennedy in 1960"

v. be in back of; "My garage backs their yard"

adv. "He moved back"

adv. in or to or toward a past time; "set the clocks back an hour"; "never look back"; "lovers of the past looking fondly backward"

adv. "He faced backward"

adv. in or to or toward a former location; "she went back to her parents' house"

adv. in repayment or retaliation; "we paid back everything we had borrowed"; "he hit me and I hit him back"; "I was kept in after school for talking back to the teacher"

adv. in reply; "he wrote back three days later"

adj. located at or near the back of an animal; "back (or hind) legs"; "the hinder part of a carcass"

adj. related to or located at the back; "the back yard"; "the back entrance"

adj. of an earlier date; "back issues of the magazine"