1
as in to testify (to)
Synonyms & Similar Words
Relevance
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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of back (up)
Matt Webb Mitovich, TVLine, 7 Apr. 2025
Casa performs annual stress tests on seed phrase backups.
—Trevor Laurence Jockims, CNBC, 6 Apr. 2025
Mika Smith suggests drawstrings or tying the bonnet at the base of your head for extra hold, and even using a silk scarf or headband on top for backup.
—Jailynn Taylor, Allure, 5 Apr. 2025
In addition, consider using a cloud service with encryption to ensure that even if an attack happens, the backup remains safe.
5.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 2 Apr. 2025
See All Example Sentences for back (up)
Noun
Bex, lurking in the shadows while waiting on backup, couldn’t quite get a shot at Jenna, but someone did — Shane, who had chosen the team over learning about his mom.
—Matt Webb Mitovich, TVLine, 7 Apr. 2025
Casa performs annual stress tests on seed phrase backups.
—Trevor Laurence Jockims, CNBC, 6 Apr. 2025
Mika Smith suggests drawstrings or tying the bonnet at the base of your head for extra hold, and even using a silk scarf or headband on top for backup.
—Jailynn Taylor, Allure, 5 Apr. 2025
In addition, consider using a cloud service with encryption to ensure that even if an attack happens, the backup remains safe.
5.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 2 Apr. 2025
See All Example Sentences for back (up)
Recent Examples of Synonyms for back (up)
Verb
-
The enthusiasm and excitement level of these kids has really gelled.—
Lou Ponsi,
Oc Register,
6 Apr. 2025
-
The Wave have gelled as a team, and many players used the word sisterhood to describe the camaraderie.—
Buffy Gorrilla,
NPR,
29 Mar. 2025
Noun
-
For lunch there are soups, salads, quiches and toasts, such as avocado toast or peanut butter and jam.—
Andrea Onate,
Footwear News,
7 Apr. 2025
-
After a wild pitch moved both baserunners into scoring position, Garrett escaped the jam with another swinging strikeout, this time of All-Star catcher Alejandro Kirk, with a splitter out of the zone.—
Peter Sblendorio,
New York Daily News,
5 Apr. 2025
Noun
-
Empowering Innovation Without Losing Control Despite their growing autonomy, agentic AI systems should be seen as tools that augment human capabilities, not as replacements for human oversight.—
Tony Bradley,
Forbes.com,
4 Apr. 2025
-
Roosevelt Park is still in progress, with a tennis court being converted into a roller rink, astro turf replacement at the pool area, new ADA entrances, decorative lightpoles in the center of new picnic tables and basketball court resurfacing and paving.—
Maya Wilkins,
Chicago Tribune,
4 Apr. 2025
Verb
-
The idea for the brand was born out of an insightful mishap.—
Jeff Fromm,
Forbes.com,
8 Apr. 2025
-
This assertion is now bearing out, to some degree, much to the anti-vaccine community's chagrin.—
David Oliver,
USA Today,
7 Apr. 2025
Verb
-
But there was another possible explanation the company didn’t discuss: Blood could coagulate inside the filter if the dialysis machine’s flow rate was set too low.—
John Carreyrou,
New York Times,
23 Jan. 2025
-
Hope needs to find hope and coagulate into a giant hope.—
Steven Zeitchik,
The Hollywood Reporter,
10 Mar. 2025
Noun
-
There’s simply no substitute for the positive outcomes that qualities like grit, individual effort, commitment and consistency can predictably bring into your life.—
Vinesh Sukumaran,
Forbes.com,
27 Mar. 2025
-
Wellness shots should be consumed in moderation and are not a substitute for a well-rounded diet.—
Chelsea Rae Bourgeois, RDN, LD,
Health,
26 Mar. 2025
Verb
-
It’s not hardened against attack the way some other secure browsers are.—
PC Magazine,
PC Magazine,
11 Apr. 2025
-
This ultra-fine, sub-10 nanometers coherent lamellar structure slowed dislocation and stacking fault movement, stores deficits efficiently, boosts strain hardening, and prevents strain from building up in one spot.—
Georgina Jedikovska,
Interesting Engineering,
10 Apr. 2025
Adjective
-
The film will mark the Marvel Cinematic Universe debut for all of the mutant actors besides Stewart, who briefly appeared in 2022's Doctor Strange in the Multiverse of Madness as an alternate universe version of Xavier.—
Wesley Stenzel,
EW.com,
8 Apr. 2025
-
After opening statements, the jury of 16, including four alternate jurors, heard from three witnesses: two police officers and a firefighter.—
CBS News,
CBS News,
8 Apr. 2025
Cite this Entry
“Back (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/back%20%28up%29. Accessed 19 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share