back up

to support someone’s opinion or order: I back up his no-smoking rule.; to move backward: Back up and give him some air!
Not to be confused with:backup – one who supports or reinforces another: I’m his backup; (computers) a copy or duplicate version of a file, program, or computer system: I made a backup of the file.

back¹

B0009500 (băk)n.1. a. The part of the trunk of the human body along and to the sides of the spine between the neck and the pelvis; the dorsum.b. The analogous dorsal region in other animals.2. The backbone or spine.3. The part or area farthest from the front.4. The part opposite to or behind that adapted for view or use: the back of the hand; wrote on the back of the photograph.5. The reverse side, as of a coin.6. A part that supports or strengthens from the rear: the back of a couch.7. a. The part of a book where the pages are stitched or glued together into the binding.b. The binding itself.8. Sports a. A player who takes a position behind the front line of other players in certain games, such as football and soccer.b. In swimming, backstroke.v. backed, back·ing, backs v.tr.1. To cause to move backward or in a reverse direction: Back the car up and then make the turn.2. To furnish or strengthen with a back or backing.3. a. To provide with financial or material support: Unions backed the pro-labor candidate.b. To lend moral support to, as by corroborating a claim. Often used with up: I'm not comfortable filing a complaint if you won't back me up.c. To be in favor of; endorse or advocate: backed the reform proposal. See Synonyms at support.4. To provide with musical accompaniment. Often used with up.5. To bet or wager on.6. To adduce evidence in support of; substantiate: backed the argument with facts.7. To form the back or background of: Snowcapped mountains back the village.v.intr.1. To move backward: backed out of the garage.2. To shift to a counterclockwise direction. Used of the wind.adj.1. Located or placed in the rear: Deliveries should be made at the back entrance.2. Distant from a center of activity; remote.3. Of a past date; not current: a back issue of a periodical.4. Being owed or due from an earlier time; in arrears: back pay.5. Being in a backward direction: a back step.6. Linguistics Pronounced with the back of the tongue, as oo in cool. Used of vowels.adv.1. At, to, or toward the rear or back.2. In, to, or toward a former location: went back for the class reunion.3. In, to, or toward a former condition: When the spell broke, the prince turned back into a frog.4. In, to, or toward a past time: This story goes back to the 1920s.5. In reserve or concealment: We kept back some money for emergencies.6. In check or under restraint: Barriers held the crowd back.7. In reply or return: emailed back that he would be late.Phrasal Verbs: back away To withdraw from a position; retreat. back down To withdraw from a position, opinion, or commitment. back off To retreat or draw away. back out1. To withdraw from something before completion.2. To fail to keep a commitment or promise. back up1. To cause to accumulate or undergo accumulation: The accident backed the traffic up for blocks. Traffic backed up in the tunnel.2. Computers To make a backup of (a program or file).Idioms: back and fill1. Nautical To maneuver a vessel in a narrow channel by adjusting the sails so as to let the wind in and out of them in alteration.2. To vacillate in one's actions or decisions. back to back Consecutively and without interruption: presented three speeches back to back. behind (one's) back In one's absence or without one's knowledge. have got (someone's) back To be prepared or ready to support or vouch for someone, as in a crisis. have (one's) back up To be angry or irritated. off (someone's) back No longer nagging or urging someone to do something. on (someone's) back Persistently nagging or urging someone to do something.

[Middle English bak, from Old English bæc.]

back′less adj.

back²

B0009500 (băk)n. A shallow vat or tub used chiefly by brewers.

[Dutch bak, from French bac, from Old French, boat, from Vulgar Latin *baccus, vessel, probably of Celtic origin.]

back up

vb (adverb) 1. (tr) to support or assist2. (Cricket) (intr) cricket (of a nonstriking batsman) to move down the wicket in readiness for a run as a ball is bowled3. (of water) to accumulate4. (of traffic) to become jammed behind an accident or other obstruction5. (Computer Science) computing to make a copy of (a data file), esp for storage in another place as a security copy6. (Printing, Lithography & Bookbinding) printing to print the second side of (a sheet)7. (usually foll by: on) Austral to repeat an action immediately n 8. a support or reinforcement 9. a. a reserve or substitute b. (as modifier): backup troops. 10. (Pop Music) a. musical accompaniment, esp for a pop singerb. (as modifier): backup singer. 11. (Civil Engineering) the overflow from a blocked drain or pipe 12. (Computer Science) computing a file or set of files copied for security purposes

Thesaurus

Verb	1.	back up - give moral or psychological support, aid, or courage to; "She supported him during the illness"; "Her children always backed her up"supportsponsor - assume responsibility for or leadership of; "The senator announced that he would sponsor the health care plan"buy at, frequent, patronise, shop at, patronize, shop, sponsor - do one's shopping at; do business with; be a customer or client ofaid, assist, help - give help or assistance; be of service; "Everyone helped out during the earthquake"; "Can you help me carry this table?"; "She never helps around the house"encourage, promote, further, boost, advance - contribute to the progress or growth of; "I am promoting the use of computers in the classroom"undergird - lend moral support tosecond, endorse, indorse, back - give support or one's approval to; "I'll second that motion"; "I can't back this plan"; "endorse a new project"
	2.	back up - move backwards from a certain position; "The bully had to back down"back down, back offdraw back, move back, pull away, pull back, recede, retreat, withdraw, retire - pull back or move away or backward; "The enemy withdrew"; "The limo pulled away from the curb"
	3.	back up - establish as valid or genuine; "Can you back up your claims?"backaffirm, confirm, corroborate, substantiate, support, sustain - establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant"
	4.	back up - make a copy of (a computer file) especially for storage in another place as a security copy; "You'd better back up these files!"computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automaticallyre-create, copy - make a replica of; "copy that drawing"; "re-create a picture by Rembrandt"
	5.	back up - become or cause to become obstructed; "The leaves clog our drains in the Fall"; "The water pipe is backed up"clog, clog up, congest, choke off, foul, chokegum up - stick together as if with gum; "the inside of the pipe has gummed up"obturate, occlude, close up, impede, obstruct, jam, block - block passage through; "obstruct the path"crap up - become obstructed or chocked up; "The drains clogged up"choke up, lug, stuff, block - obstruct; "My nose is all stuffed"; "Her arteries are blocked"silt, silt up - become chocked with silt; "The river silted up"

Translations

支持备份

back

(bӕk) noun1. in man, the part of the body from the neck to the bottom of the spine. She lay on her back. （人）背部 2. in animals, the upper part of the body. She put the saddle on the horse's back. （动物）背部，后面 3. that part of anything opposite to or furthest from the front. the back of the house; She sat at the back of the hall.背面4. in football, hockey etc a player who plays behind the forwards. （足球等的）后卫 adjective of or at the back. the back door.后面的 adverb1. to, or at, the place or person from which a person or thing came. I went back to the shop; He gave the car back to its owner.回原处2. away (from something); not near (something). Move back! Let the ambulance get to the injured man; Keep back from me or I'll hit you!后退3. towards the back (of something). Sit back in your chair.向后4. in return; in response to. When the teacher is scolding you, don't answer back.答复5. to, or in, the past. Think back to your childhood.回溯 verb1. to (cause to) move backwards. He backed (his car) out of the garage.倒退2. to help or support. Will you back me against the others?支持3. to bet or gamble on. I backed your horse to win.下赌注在...上ˈbacker noun a person who supports someone or something, especially with money. the backer of the new theatre. 赞助人，支持者 ˈbackbite verb to criticize a person when he is not present. 背后说人坏话ˈbackbiting nounConstant backbiting by her colleagues led to her resignation.诽谤ˈbackbone noun1. the spine. the backbone of a fish.脊骨2. the chief support. The older employees are the backbone of the industry.主要支柱ˈbackbreaking adjective (of a task etc) very difficult or requiring very hard work. Digging the garden is a backbreaking job. 非常辛劳的，艰苦繁重的 ˌbackˈdate verb1. to put an earlier date on (a cheque etc). He should have paid his bill last month and so he has backdated the cheque. 在（支票）上书写更早的日期 2. to make payable from a date in the past. Our rise in pay was backdated to April.自过去某时起支付ˌbackˈfire verb1. (of a motor-car etc) to make a loud bang because of unburnt gases in the exhaust system. The car backfired. （汽车）回火 2. (of a plan etc) to have unexpected results, often opposite to the intended results. His scheme backfired (on him), and he lost money.产生事与愿违的结果ˈbackground noun1. the space behind the principal or most important figures or objects of a picture etc. He always paints ships against a background of stormy skies; trees in the background of the picture.背景2. happenings that go before, and help to explain, an event etc. the background to a situation.背景情况3. a person's origins, education etc. She was ashamed of her humble background. 经历，学历 ˈbackhand noun1. in tennis etc, a stroke or shot with the back of one's hand turned towards the ball. a clever backhand; His backhand is very strong. （网球等的）反手击球 2. writing with the letters sloping backwards. I can always recognize her backhand.左斜体书法 adverb using backhand. She played the stroke backhand; She writes backhand.反手地ˈbacklog noun a pile of uncompleted work etc which has collected. a backlog of orders because of the strike.积压的工作ˌback-ˈnumber noun an out-of-date copy or issue of a magazine etc. He collects back-numbers of comic magazines.过期的报刊ˈbackpack noun (especially American) a bag that walkers, people who go on trips, or students carry on their backs. 背包ˈbackpacking: go backpacking to go on trips or go camping carrying a backpack. 背包旅行或露营ˈbackpacker noun背包旅行或露营者ˈbackside noun the bottom or buttocks. He sits on his backside all day long and does no work. 屁股，臀部 ˈbackslash noun the sign (\\). 反斜线符号ˈbackstroke noun in swimming, a stroke made when lying on one's back in the water. The child is good at backstroke.仰泳ˈbackup noun1. additional people who provide help when it is needed. The police officer requested some backup when the shooting began. 后援，后备者 2. a copy of a computer file that can be used in case the original is destroyed. 备份文件3. (also adjective) a piece of equipment, a system etc that can be used when there is a problem with the original one. a backup plan; We have a backup generator in case the power fails. 备份的，备用的 ˈbackwash noun1. a backward current eg that following a ship's passage through the water. the backwash of the steamer.由船等运动引起的逆流2. the unintentional results of an action, situation etc. The backwash of that firm's financial troubles affected several other firms.反响ˈbackwater noun1. a stretch of river not in the main stream. 回流2. a place not affected by what is happening in the world outside. That village is rather a backwater. 闭塞的地方，與世隔絕的地方 ˌbackˈyard noun (especially American) a garden at the back of a house etc. He grows vegetables in his backyard.后院back down to give up one's opinion, claim etc. She backed down in the face of strong opposition. 放弃（观点），退让 back of (American) behind. He parked back of the store.在...的后部back on to (of a building etc) to have its back next to (something). My house backs on to the racecourse.背对著back out1. to move out backwards. He opened the garage door and backed (his car) out.倒出2. to withdraw from a promise etc. You promised to help – you mustn't back out now! 收回（承诺） back up1. to support or encourage. The new evidence backed up my arguments.支持2. to make a copy of the information stored on the computer or disk. 备份have one's back to the wall to be in a very difficult or desperate situation. He certainly has his back to the wall as he has lost his job and cannot find another one.处于绝境put someone's back up to anger someone. He put my back up with his boasting. 激怒（某人） take a back seat to take an unimportant position. At these discussions he always takes a back seat and listens to others talking. 处于次要地位，谦让

back up

→ 支持zhCN

back up

1. verb To move backwards. This phrase is commonly used to refer to maneuvering a car in reverse. Back up, you're standing too close to me! If you back up a little, then your car will be completely in that parking space.2. verb To save copies of computer files in another place, in case the original files become inaccessible. If you didn't back up your files before the computer crashed, they may be lost forever.3. verb To become clogged and impassable. I'm calling the plumber right now because the toilet is backed up again. Traffic is totally backed up, due to all that construction.4. verb To return to an item previously mentioned. Whoa, back up—Janet and Jim are getting married?5. verb To support or assist someone. In this usage, a noun or pronoun can be used between "back" and "up." You didn't see that meeting on the calendar, either? OK, please back me up on this, so the boss doesn't think I'm an idiot.6. noun An alternate to be used if it becomes necessary for some reason, typically the failure, ineffectiveness, or the absence of the original. The phrase is typically written as one word. I brought an extra pen as a backup, in case this one runs out of ink during the exam. I hope Tony asks me to the prom, but, if not, I have my best friend Bill as a backup.7. adjective Available for use as an alternate if it becomes necessary for some reason, typically the failure, ineffectiveness, or the absence of the original. The phrase is typically written as one word. I brought three backup pens, in case this one runs out of ink during the exam. I'm the backup quarterback, but I still have to know all the plays in case I get in the game. I hope Tony asks me to the prom, but, if not, I have my best friend Bill as a backup date.8. adjective Appearing in the background in support of a main act or performer. The phrase is typically written as one word. She's auditioning backup dancers for her world tour today.See also: back, up

back someone up

to provide someone with help in reserve; to support someone. Don't worry. I will back you up when you need me. Will you please back up Nancy over the weekend?See also: back, up

back something up

1. Lit. to drive a car backwards. Will you back your car up a little? I will back up the car. 2. Lit. to cause objects to obstruct a pathway or channel and cause a slowdown in the flow. The wreck backed the cars up for a long way. Some dead branches and leaves backed the sewer up. 3. Fig. to give additional support or evidence about something. (To support or strengthen the facts.) My story of the crime will back your story up. That backs up my story, all right.See also: back, up

back up (to something)

to go back to something said in a conversation. Wait—back up a little. What did you say that phone number was? Let's back up to what you just said and go over that point again.See also: back, up

back up

1. Lit. [for objects] to obstruct and accumulate in a pathway or channel. Something clogged the sewer and it backed up. 2. Fig. to refuse to go through with something; to back out (of something). Fred backed up at the last minute, leaving me to do the job alone.See also: back, up

back up

1. Move or drive a vehicle backward, as in He told her to back up into the garage. [First half of 1800s] 2. Bring or come to a standstill, as in The water had backed up in the drains, or The accident had backed up traffic for miles. [First half of 1800s] 3. Support or strengthen, as in The photos were backed up with heavy cardboard so they couldn't be bent, or I'll back up that statement of yours. [Second half of 1700s] 4. Duplicate a file or program so that the original is not lost. For example, Every computer manual warns you to back up your work frequently in case of a power outage or computer failure . [Second half of 1900s] See also: back, up

back up

v.1. To move backward: We passed the house we were looking for, so we had to back up a little bit.2. To move something or someone backward: I backed the car up against the garage wall. Let's back up the car to the curb.3. To prove something to be true: There was not enough evidence to back up the theory. What I told you is true, and now I have even more evidence to back it up.4. To support someone by confirming that they are telling the truth: We told our version of the events, certain that the witnesses would back us up. They won't back up anyone who is known for lying.5. To provide help or support for someone or something: If I decide to take on the job, can I count on you to back me up? The political party backs up any candidate who follows its basic principles.6. To cause to accumulate, especially due to an obstruction: The accident backed the traffic up for blocks. Something got stuck in the drain, and now the kitchen sink is backed up.7. To make a copy of a computer program or file for use if the original is lost or damaged: I backed up the disk so that I wouldn't lose any data. Be sure to back your files up before you turn off the computer. See also: back, up

back up

in. to refuse to go through with something; to back out (of something). Fred backed up at the last minute, leaving me with twenty pounds of hot dogs. See also: back, up

backed up

mod. drug intoxicated. Old Benny’s really backed up. See also: backed, up

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Synonyms for back up

verb give moral or psychological support, aid, or courage to

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verb move backwards from a certain position

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verb establish as valid or genuine

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verb make a copy of (a computer file) especially for storage in another place as a security copy

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verb become or cause to become obstructed

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back someone up

back something up

back up (to something)

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Synonyms for back up

verb give moral or psychological support, aid, or courage to

Synonyms

Related Words

verb move backwards from a certain position

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Related Words

verb establish as valid or genuine

Synonyms

Related Words

verb make a copy of (a computer file) especially for storage in another place as a security copy

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verb become or cause to become obstructed

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