Which to use
“base” is a noun and “based” is a verb - they look or sound alike but fill different roles in a sentence.
- #428
- “base” frequency rank
- #35,898
- “based” frequency rank
- 36326
- confusion score
Side-by-Side Comparison
| Feature | base | based |
|---|---|---|
| Definition | Parte inferior de un cuerpo que le sirve de soporte. | Pasado simple del verbo (to) base. |
Where the eye mixes base and based
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: base vs based
These two trip readers on the page rather than in the ear: base is [ˈbase] while based is /beɪst/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “base” sits inside “based”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 36326, derived from the frequency rank of both members and their visual similarity.
base is recorded at frequency rank #428, classified as anoun, pronounced [ˈbase]. based is at rank #35,898, tagged as averb, pronounced /beɪst/.
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 36326, this pair ranks #181,218 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of base vs based
Shared letters: abes. Private to "base": -. Private to "based": d.
"base" · 4 letters · shape CVCV · "based" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "base" and "based" be used interchangeably?
Which is more common, "base" or "based"?
What to do next
Eye-level mix-up between "base" and "based" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "base" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "based" - compare definitions side by side with the headword page. Word entry
- This pair ranks #181,218 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "base" and "based" also get mixed up with nearby pairs, the highest-scored neighbour is "bane vs based". 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 #181,218 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.