1
as in to testify (to)
Synonyms & Similar Words
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Antonyms & Near Antonyms
1
as in jam
a crowded mass (as of cars) that impedes or blocks movement
there was the inevitable backup of travelers trying to pass through airport security
Synonyms & Similar Words
2
as in replacement
a person or thing that takes the place of another
you didn't get the lead position, but you can be the backup to the chosen singer
Synonyms & Similar Words
as in makeshift
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Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
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Recent Examples of back (up)
Kirk Kenney, San Diego Union-Tribune, 7 May 2025
The Broncos, of course, are led by second-year starter Bo Nix and signed backup Jarrett Stidham to a two-year extension this summer.
—Parker Gabriel, Denver Post, 7 May 2025
Ideal as a backup, travel laptop, or for kids—fast, portable, and versatile with free shipping.
—New Atlas, 7 May 2025
Joseph Woll will start for Toronto with Matt Murray as the backup.
—Jordan McPherson, Miami Herald, 7 May 2025
See All Example Sentences for back (up)
Noun
There are also four experienced backups, including transfers Cox (New Mexico State) and McDougle (Idaho).
—Kirk Kenney, San Diego Union-Tribune, 7 May 2025
The Broncos, of course, are led by second-year starter Bo Nix and signed backup Jarrett Stidham to a two-year extension this summer.
—Parker Gabriel, Denver Post, 7 May 2025
Ideal as a backup, travel laptop, or for kids—fast, portable, and versatile with free shipping.
—New Atlas, 7 May 2025
Joseph Woll will start for Toronto with Matt Murray as the backup.
—Jordan McPherson, Miami Herald, 7 May 2025
See All Example Sentences for back (up)
Recent Examples of Synonyms for back (up)
Verb
-
The touring band gelled quickly, with the trio putting a new spin upon the tracks live on stage each night, releasing their debut album Live Flowers as mssv (main steam stop valve) later that year.—
Jim Ryan,
Forbes.com,
24 May 2025
-
The defining hairstyle consisted of swoops or curls gelled to the forehead.—
Kleigh Balugo,
StyleCaster,
6 May 2025
Noun
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But Kyle Tucker’s run-scoring single in the fifth put the Cubs ahead again, and Taillon got out of a jam in the sixth, aided by Nico Hoerner nailing a runner at the plate on a fielder’s choice grounder.—
Paul Sullivan,
Chicago Tribune,
26 May 2025
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The next blues jam at The Bakery District is set for 1-6 p.m. June 15.—
Monica Hooper,
Arkansas Online,
25 May 2025
Noun
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But the reality is that there is no replacement for Pulisic.—
Paul Tenorio,
New York Times,
22 May 2025
-
In addition to its larger screen, this adds to the longevity and usefulness of this system as a desktop replacement.—
Matthew Buzzi,
PC Magazine,
21 May 2025
Verb
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In its place was a spirit of unity and kindness, a solidarity born out of unspeakable tragedy.—
Leonard Greene,
New York Daily News,
25 May 2025
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This seems tantamount to carelessness, a crime more often born out of immaturity than nefariousness.—
Brian Moylan,
Vulture,
22 May 2025
Verb
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Within hours the pool would coagulate into electric-blue slush, like a gas station Slurpee.—
Alec Luhn,
Scientific American,
20 May 2025
-
That familiar lump of expectation coagulated in my stomach and throat.—
Thomas Weddle,
Outdoor Life,
17 Apr. 2025
Noun
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The information provided here is not legal advice and does not purport to be a substitute for advice of counsel on any specific matter.—
Jonathan Carson,
Forbes.com,
27 May 2025
-
The time allocated could not be a substitute for instructional time.—
Eleanor Dearman,
Fort Worth Star-Telegram,
23 May 2025
Verb
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Related article Ships, sea drones and AI: How NATO is hardening its defense of critical Baltic undersea cables CNN was not able to locate the registered owner of the Jaguar for comment.—
Joseph Ataman,
CNN Money,
20 May 2025
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These devices must be hardened against attackers seeking stealthy persistence.—
Yuriy Bulygin,
Forbes.com,
15 May 2025
Adjective
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People with an allergy to kiwi should look for alternate sources of vitamin C. 6.—
Julie Marks,
Verywell Health,
19 May 2025
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When the good news came, there were about 15 hours until his tee time — which for an alternate might as well be a month.—
Jordan Kaye,
Charlotte Observer,
16 May 2025
Cite this Entry
“Back (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/back%20%28up%29. Accessed 2 Jun. 2025.
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