back up

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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
References in periodicals archive ?
TEHRAN (FNA)- Brazil named their list of seven players who will be on standby for this summer's home World Cup, with Lucas Moura the star among the back-up options.
Software agents connected to the back-up environment must be installed and maintained on each server, desktop and laptop, in every branch - putting a big administrative burden on data center operations.
In nearly every case the back-up system was inadequate, as it would result in data and vital systems' information being lost."
The customer reportedly controls the back-up process over their Internet connection, but the data itself travels on Datanet's private network, ensuring security and at the same time providing customer flexibility.
When the IT team reached for the back-up, they found that the tapes were unreadable, despite the back-up log going back months suggesting a successful nightly outcome.
Denver were already down to their third quarterback, Danny Kanell, when they faced Baltimore last week and the back-up's weak showing was later explained by the fact that he sprained a finger on his throwing hand in the first quarter.
Unless you have tried to recover files from the back-up copy, there is no guarantee a back-up copy actually exists.
As that shows, the back-up headache may not be going away, but there are techniques for taking away the pain.
The trouble is, you most likely won't discover that until you try to restore some files from the back-up, and you find that one or more is damaged.
If it is at all possible, send the back-up copy you made in Step 8 to an antiviral company for evaluation.
The Back-UPS Connect BGE70 represents a revolutionary approach to home and small business power protection.
I like to believe I'm in contention for the back-ups.
Additionally, surge protection, battery backup, automatic voltage regulation (AVR) and award-winning management software make the Back-UPS RS 1200 and 1500 LCD ideal solutions for protecting home and business users from data loss caused by power problems.
Cardiff manager Dave Jones is keen to bring in a new first choice and wants Scott Carson on loan from Liverpool with Mark Howard, signed from Arsenal, and Martyn Margetson the back-ups.
The Back-UPS ES 750 comes equipped with USB (Universal Serial Bus) connectivity and includes APC's PowerChute Personal Edition software, an easy-to-use, safe, system shutdown tool.