Thesaurus
Synonyms & Antonyms of back (up)
(Entry 1 of 3)
1
as in testify (to), vouch (for)
Synonyms & Near Synonyms for back (up)
Antonyms & Near Antonyms for back (up)
backup
nounSynonyms of backup (Entry 2 of 3)
1
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 for backup
Words Related to backup
2
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 for backup
Words Related to backup
backup
adjectiveSynonyms & Antonyms of backup (Entry 3 of 3)
as in alternate, proxy
Synonyms & Near Synonyms for backup
Antonyms & Near Antonyms for backup
Learn More About back (up)
Cite this Entry
“Back (up).” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/back%20%28up%29. Accessed 15 Aug. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
Share back (up)
Time Traveler for back (up)
The first known use of back (up) was in 1801
See more words from the same year