1 backed up | Definition of backed up

backup

noun, often attributive
back·​up | \ ˈbak-ˌəp How to pronounce backup (audio) \

Definition of backup

 (Entry 1 of 2)

1a : one that serves as a substitute or support I brought an extra pencil for backup. a backup plan
b : musical accompaniment The tunes include banjo and guitar backup.
c : additional personnel who provide assistance The police officer called for backup.
2 : an accumulation caused by a stoppage in the flow traffic backup
3 : a copy of computer data (such as a file or the contents of a hard drive) I made a backup copy of the file. also : the act or an instance of making a backup

back up

verb
backed up; backing up; backing up

Definition of back up (Entry 2 of 2)

intransitive verb

: to accumulate in a congested state traffic backed up for miles

transitive verb

1 : to move into a position behind (a teammate) in order to assist on a play
3 : to make a copy of (a computer file or data) to protect against accidental loss or corruption Be sure to back up your work. also : to make copies of all the files on (a device) a program that automatically backs up your hard drive

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Synonyms for backup

Synonyms: Noun

bottleneck, jam, jam-up, logjam, snarl, tailback [British], tie-up

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Examples of backup in a Sentence

Noun

His role on the team is to be a backup to the regular quarterback. We have an extra radio as a backup in case this one doesn't work. We have an extra radio for backup. He provides backup for the regular quarterback. She sang backup on his CD.
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Recent Examples on the Web: Noun

The final game of the preseason is usually reserved for the backups and bubble players on the roster, with most, if not all, the regular season starters taking the night off. oregonlive, "Seattle Seahawks vs. Oakland Raiders in NFL preseason: Score, TV channel, how to watch live stream online," 29 Aug. 2019 After picking up a Super Bowl ring as Kurt Warner's backup with the St. Louis Cardinals, Germaine played for White with the Rattlers. Richard Obert, azcentral, "Queen Creek football aims for championship season with Joe Germaine back as head coach," 29 Aug. 2019 Pocic can also play anywhere in the interior, making him an extremely valuable backup. oregonlive.com, "Seattle Seahawks’ 53-man roster projection for the 2019 season," 28 Aug. 2019 Explain yourself: Golladay, Amendola and Marvin Jones will get the bulk of the playing time at receiver, but the Lions are probably looking at two backups for their 53-man roster. Dave Birkett, Detroit Free Press, "Detroit Lions' 53-man roster prediction: Tough decisions on defense await," 27 Aug. 2019 Shanahan revealed that when asked about the unexpected retirement of Colts quarterback Andrew Luck, which made Indianapolis another team without an appealing backup QB. Eric Branch, SFChronicle.com, "Want Nick Mullens or C.J. Beathard? 49ers’ Kyle Shanahan says they won’t be found on waiver wire," 25 Aug. 2019 The Friday night crowd coming to the first-ever Epicenter Festival, a three-day concert in rural North Carolina, has overwhelmed the local roads, leading to backups miles long. Ezra Dyer, Popular Mechanics, "The Zero FX: The Amazing Silent Speedy Electric Dirt Bike," 25 Aug. 2019 That changed in Devin’s senior season and Tre’s junior year in 2014 when Viera — led by current UCF backup QB Hayden Kingston — captured its first district championship. Stephen Ruiz, orlandosentinel.com, "UCF brothers Tre and Devin Nixon grateful for surprise final season together," 22 Aug. 2019 And one of those starters may lose his starting job to last year’s backup. Pomerado News, "Time for younger Bronco players to step up," 22 Aug. 2019

Recent Examples on the Web: Verb

Electronic message signs, currently banned in Park Ridge, are back up for discussion as the city’s planning and zoning commission considers whether to amend its laws in the interest of public transportation. Jennifer Johnson, chicagotribune.com, "Electronic message signs are banned in Park Ridge. Officials could make an exception for bus stops.," 29 Aug. 2019 The grooves could have allowed the builders to lower the stones onto the walls, roll them into place using rollers, lever them up to remove the rollers, then extract the ropes from under the blocks without lifting them back up. Jason Daley, Smithsonian, "The Ancient Greeks Used Machines to Lift Stones 150 Years Earlier Than Previously Believed," 29 Aug. 2019 After the Lightning closed to within one point, the Sailors built their lead back up to 17-11. Andrew Turner, Daily Pilot, "Newport Harbor girls’ volleyball beats Sage Hill in opener," 27 Aug. 2019 This allowed the crew to hoist her back up so she could be taken away in an ambulance. Ethan Schmidt, azcentral, "Sedona Fire rescues 8-year-old girl who fell 75 feet in Oak Creek Canyon on Sunday," 26 Aug. 2019 Monday and Tuesday’s highs will likely be in the 80s going back up to 90 degrees on Wednesday and 93 on Thursday, according to the weather service. Saja Hindi, The Denver Post, "Denver weather: High fire danger due to hot, dry, windy weather," 25 Aug. 2019 The Astros will bring Sneed back up when rosters expand in September, Hinch said. Hunter Atkins, Houston Chronicle, "Astros send Cy Sneed to AAA to make room for Framber Valdez," 25 Aug. 2019 Now that Stranger Things is on a break, the kids can finally enjoy some down time before their other projects start back up. Jasmine Gomez, Seventeen, "Millie Bobby Brown and Noah Schnapp Just Proved Why They're BFF Goals IRL," 16 Aug. 2019 The country has a law stating that the animals can be released during the summer months and the entire country comes together in September to round them back up. Erika Owen, Condé Nast Traveler, "The Best Things to Do in Iceland: Our Definitive List," 16 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'backup.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of backup

Noun

1910, in the meaning defined at sense 1a

Verb

1801, in the meaning defined at intransitive sense

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More Definitions for backup

back up

verb

Financial Definition of back up

What It Is

A back up is an increase in a security’s price, yield, or spread before issuance.

In other circles, back up means replacing a long-maturity security with a short-maturity security in order to capitalize on short-term interest rates that are higher than long-term interest rates.

How It Works

For example, let’s assume that Company XYZ wants to issue $100 million in 10-year bonds. The yields on bonds of similar quality and risk were about 5% when Company XYZ hired the underwriter to handle the bond issue, but since then the required yields have increased to 7%. This means Company XYZ has to issue the bonds at a bigger discount in order to keep the issue competitive, and thus it will obtain less cash from investors at the time of the sale.

This increase in the cost of issuing the securities is a back up.

Why It Matters

Back ups can be very detrimental to issuers, especially if they are relying on a very specific amount of money to come from the issue, and even more especially if the company’s success hinges on the reinvestment of those funds.

Source: Investing Answers

backup

noun

English Language Learners Definition of backup

: a person or thing that can be used to replace or support another person or thing
: help or support provided by additional people or things
US : a situation in which the flow of something (such as traffic) becomes blocked

backup

noun