Which to use
“back” and “backup” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,223
- “back” frequency rank
- #38,517
- “backup” frequency rank
- 46740
- confusion score
Side-by-Side Comparison
| Feature | back | backup |
|---|---|---|
| Definition | Espalda. | Copia de uno o varios archivos que se hace para poder restaurarlos en el el caso de que los originales se corrompan. |
Where the eye mixes back and backup
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between back and backup
A purely visual mix-up. back (/bæk/) and backup ([baˈkap]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “back” sits inside “backup”. Our composite confusion score for this pair is 46740, derived from the frequency rank of both members and their visual similarity.
back is recorded at frequency rank #8,223, classified as anoun, pronounced /bæk/. backup is at rank #38,517, tagged as anoun, pronounced [baˈkap].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 46740, this pair ranks #124,045 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of back vs backup
Shared letters: abck. Private to "back": -. Private to "backup": pu.
"back" · 4 letters · shape CVCC · "backup" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "back" and "backup" mean the same thing in a sentence?
Which is more common, "back" or "backup"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "back" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "backup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #124,045 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "back" and "backup" also get mixed up with nearby pairs, the highest-scored neighbour is "backup vs Bakú". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #124,045 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.