the posterior part of a human (or animal) body from the neck to the end of the spine"his back was nicely tanned"
同义词：dorsum
the side that goes last or is not normally seen"he wrote the date on the back of the photograph"
同义词：rear
the part of something that is furthest from the normal viewer"he stood at the back of the stage"
同义词：rear
(football) a person who plays in the backfield the series of vertebrae forming the axis of the skeleton and protecting the spinal cord"the fall broke his back"
同义词：spinal columnvertebral columnspinebackbonerachis
the protective covering on the front, back, and spine of a book 同义词：bindingbook bindingcover
the part of a garment that covers the back of your body"they pinned a `kick me' sign on his back"
a support that you can lean against while sitting"the back of the dental chair was adjustable"
同义词：backrest
the position of a player on a football team who is stationed behind the line of scrimmage v. be behind; approve of"I backed Kennedy in 1960"
同义词：endorseindorseplump forplunk forsupport
travel backward"back into the driveway"; " The car backed up and hit the tree"
give support or one's approval to"I can't back this plan"
同义词：secondendorseindorse
cause to travel backward"back the car into the parking spot"
support financial backing for"back this enterprise"
be in back of"My garage backs their yard"
place a bet on"Which horse are you backing?"
同义词：bet ongagestakegamepunt
shift to a counterclockwise direction"the wind backed"
establish as valid or genuine"Can you back up your claims?"
同义词：back up
strengthen by providing with a back or backing adj. related to or located at the back"the back yard"; " the back entrance"
located at or near the back of an animal"back (or hind) legs"
同义词：hind(a)hinder(a)
of an earlier date"back issues of the magazine"
adv. in or to or toward a former location"she went back to her parents' house"
at or to or toward the back or rear"he moved back"; " tripped when he stepped backward"
同义词：backwardbackwardsrearwardrearwards
in or to or toward an original condition"he went back to sleep"
in or to or toward a past time"set the clocks back an hour"; " never look back"; " lovers of the past looking fondly backward"
同义词：backward
in answer"he wrote back three days later"
同义词：in reply
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"