back
adverb
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in or to or toward a past time“set the clocks back an hour”backward
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at or to or toward the back or rear“They moved back to distance themselves from the cameras down front.”backwardbackwardsrearwardrearwards
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in repayment or retaliation“we paid back everything we had borrowed”
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in or to or toward a former location“They went back to their parents' house.”
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in or to or toward an original condition“The dog went back to sleep.”
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in reply to“They wrote back three days later.”
noun
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(American football) the position of a player on a football team who is stationed behind the line of scrimmage
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a support that you can lean against while sitting“the back of the dental chair was adjustable”backrest
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the part of a garment that covers the back of your body“They pinned a 'kick me' sign on the new kid's back.”
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the protective covering on the front, back, and spine of a bookcover
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the side that goes last or is not normally seen“I wrote the date on the back of the photograph.”rear
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the posterior part of a body from the neck to the end of the spine“Our backs were nicely tanned after a day on the beach.”dorsum
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the series of vertebrae forming the axis of the skeleton and protecting the spinal cord“The fall broke their back.”spinebackbonespinal columnrachis
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the part of something that is furthest from the normal viewer“I stood at the back of the stage.”rear
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in association football, a person who plays in the backfield, also known as a defender“The goalkeeper passed the ball to the back, who then ran it forward.”
verb
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to strengthen by providing with a back or backing“I backed the photo so it would not get bent in the post.”
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to establish as valid or genuine“Can you back up your claims?”back up
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to shift to a counterclockwise direction“The wind backed.”
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to place a bet on“Which horse are you backing?”punt
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to travel backward“I will back the car into the driveway.”
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to cause to travel backward“I backed the car into the parking spot.”
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to support financial backing for“They backed my crowd funding campaign.”
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to be behind“The house backs the park.”support
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to give support or one's approval to“They backed my crowdfunding campaign.”secondendorseindorse
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to be in back of“My garage backs their yard.”
adjective
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located at or near the back of an animalhindhinder
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related to or located at the back
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of an earlier date