Antonym: fore, forth, front. Similar words: back up, back on, back of, cut back, back away, hold back, set back, pay back. Meaning: [bæk] 
n. 1. the posterior part of a human (or animal) body from the neck to the end of the spine 2. the side that goes last or is not normally seen 3. the part of something that is furthest from the normal viewer 4. (football) a person who plays in the backfield 5. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord 6. the protective covering on the front, back, and spine of a book 7. the part of a garment that covers the back of your body 8. a support that you can lean against while sitting 9. the position of a player on a football team who is stationed behind the line of scrimmage. v. 1. be behind; approve of 2. travel backward 3. give support or one's approval to 4. cause to travel backward 5. support financial backing for 6. be in back of 7. place a bet on 8. shift to a counterclockwise direction 9. establish as valid or genuine 10. strengthen by providing with a back or backing. adj. 1. related to or located at the back 2. located at or near the back of an animal 3. of an earlier date. adv. 1. in or to or toward a former location 2. at or to or toward the back or rear 3. in or to or toward an original condition 4. in or to or toward a past time 5. in answer 6. in repayment or retaliation.
n. 1. the posterior part of a human (or animal) body from the neck to the end of the spine 2. the side that goes last or is not normally seen 3. the part of something that is furthest from the normal viewer 4. (football) a person who plays in the backfield 5. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord 6. the protective covering on the front, back, and spine of a book 7. the part of a garment that covers the back of your body 8. a support that you can lean against while sitting 9. the position of a player on a football team who is stationed behind the line of scrimmage. v. 1. be behind; approve of 2. travel backward 3. give support or one's approval to 4. cause to travel backward 5. support financial backing for 6. be in back of 7. place a bet on 8. shift to a counterclockwise direction 9. establish as valid or genuine 10. strengthen by providing with a back or backing. adj. 1. related to or located at the back 2. located at or near the back of an animal 3. of an earlier date. adv. 1. in or to or toward a former location 2. at or to or toward the back or rear 3. in or to or toward an original condition 4. in or to or toward a past time 5. in answer 6. in repayment or retaliation. 
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(241) When can you give back the money that you owe?
(242) The back of a car appeared right in front of him.
(243) She closed her eyes tightly in a vain attempt to hold back the tears.
(244) My shirt stuck to the clammy sweat on my back.
(245) Overgrown deciduous shrubs can be cut back at this time of year.
(246) She's injured her back and is in traction for a month.
(247) As the strike went on, there was a gradual drift back to work.
(248) Oh, you're back, why don't you switch on the lights?
(249) She yelled back at me to mind my own business.
(250) The birds were enticed back into Britain 40 years ago.
(251) As Jim bent over to pick up the pen, he felt a sharp pain in his back.
(252) Our love never come back, how sad it is a word.
(253) If two people are meant to be together,eventually they will find their way back.
(254) Eddie slipped the safety catch on his automatic back into place.
(255) He was so impatient that I could hardly hold him back.
(256) I'd only gone a little way down the street when I remembered I hadn't locked the door, so I made/did a quick about-turn and ran back to the house.
(257) He then keeled over and fell flat on his back.
(258) I know a shortcut to town through the back streets.
(259) We sat in a row at the back of the room.
(260) The hook which he had thrown did not catch on the rocks, and dropped back to the ground.
(261) In the back of the truck was a 12.7 millimeter rapid-fire machine gun.
(262) Not what I miss(Sentencedict.com), but I can not go back the past.
(263) I wouldn't care success or failure, for I will only struggle ahead as long as I have been destined to the distance. I wouldn't care the difficulties around, for what I can leave on the earth is only their view of my back since I have been marching toward the horizontal.
(264) I want him back, but I just don't know how to go about it.
(265) He was back in the office, updating the work schedule on the computer.
(266) She rocks back and forth on her chair like a mischievous child.
(267) Can you lend me 5? I'll pay you back tomorrow.
(268) I suddenly feel myself like a doll,acting all kinds of joys and sorrows.There are lots of shining siliery thread on my back,controlling all my action.
(269) He picked his cap up from the floor and stuck it back on his head.
(270) when every love comes to the end, if u look back, u will find flowers and sorrows, but it's always beautiful.
More similar words: back up, back on, back of, cut back, back away, hold back, set back, pay back, call back, keep back, go back to, draw back, look back, give back, go back on, backyard, feedback, bring back, fall back on, background, double back, back and forth, date back to, quarterback, tobacco, bacteria, sack, rack, pack, track.