Which to use
“bas” is an adjective and “bir” is a num - they look or sound alike but fill different roles in a sentence.
- #25,153
- “bas” frequency rank
- #48,247
- “bir” frequency rank
- 73400
- confusion score
Side-by-Side Comparison
| Feature | bas | bir |
|---|---|---|
| Definition | Bajo. | Uno, un. |
Where the eye mixes bas and bir
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. bas and bir follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses bas with bir
These two trip readers on the page rather than in the ear: bas is /bɑ/ while bir is [bir]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs num), which is usually the fastest check. Our composite confusion score for this pair is 73400, derived from the frequency rank of both members and their visual similarity.
bas is recorded at frequency rank #25,153, classified as anadj, pronounced /bɑ/. bir is at rank #48,247, tagged as anum, pronounced [bir].
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 73400, this pair ranks #23,370 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of bas vs bir
Shared letters: b. Private to "bas": as. Private to "bir": ir.
"bas" · 3 letters · shape CVC · "bir" · 3 letters · shape CVC
Frequently Asked Questions
Can "bas" and "bir" be used interchangeably?
In ordinary Spanish text, does "bas" or "bir" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "bas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "bir" - compare definitions side by side with the headword page. Word entry
- This pair ranks #23,370 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "bas" and "bir" also get mixed up with nearby pairs, the highest-scored neighbour is "bir vs brie". Nearby pair
Confusion rank #23,370 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.