subirvssubtilWhich spelling fits?

Quick tell: subir is a verb, subtil is an adjective, so they fill different roles in a sentence.

Which to use

“subir” is a verb and “subtil” is an adjective - they look or sound alike but fill different roles in a sentence.

#2,256
“subir” frequency rank
#40,344
“subtil” frequency rank
42600
confusion score

Side-by-Side Comparison

Feature subir subtil
Definition trepar por; elevar tênue, fino

Where the eye mixes subir and subtil

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
subir
6 ch
subtil

Visual trap between subir and subtil

These two trip readers on the page rather than in the ear: subir is /su.ˈbiɾ/ while subtil is /sub.ˈtiɫ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 42600, derived from the frequency rank of both members and their visual similarity.

subir is recorded at frequency rank #2,256, classified as averb, pronounced /su.ˈbiɾ/. subtil is at rank #40,344, tagged as anadj, pronounced /sub.ˈtiɫ/.

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 42600, this pair ranks #23,156 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of subir vs subtil

Shared letters: bisu. Private to "subir": r. Private to "subtil": lt.

"subir" · 5 letters · shape CVCVC  ·  "subtil" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • subirsbuir · ssubir · subbir · subirr · subri · suibr · usbir
  • subtilsbutil · ssubtil · subbtil · subitl · subtill · subtli · subttil · sutbil

Frequently Asked Questions

Is swapping "subir" for "subtil" ever safe?
No - they are not even the same part of speech. "subir" is a verb and "subtil" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "subir" or "subtil"?
"subir" is the more common of the two: it sits at frequency rank #2,256 in our Portuguese list, against #40,344 for "subtil". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "subir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "subtil" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #23,156 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "subir" and "subtil" also get mixed up with nearby pairs, the highest-scored neighbour is "subtil vs sutiã". 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 #23,156 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list