obviasvsostiasConfusable pair

Quick tell: obvias is a verb, ostias is a noun, so they fill different roles in a sentence.

Which to use

“obvias” is a verb and “ostias” is a noun - they look or sound alike but fill different roles in a sentence.

#16,398
“obvias” frequency rank
#46,705
“ostias” frequency rank
63103
confusion score

Side-by-Side Comparison

Feature obvias ostias
Definition Segunda persona del singular (tú) del presente de indicativo de obviar. Forma del plural de ostia.

Where the eye mixes obvias and ostias

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. obvias and ostias follow the identical consonant-vowel pattern (VCCVVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
obvias
6 ch
ostias

Why the eye confuses obvias with ostias

These two trip readers on the page rather than in the ear: obvias is [ˈoβ̞bjas] while ostias is [ˈost̪jas]. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 63103, derived from the frequency rank of both members and their visual similarity.

obvias is recorded at frequency rank #16,398, classified as averb, pronounced [ˈoβ̞bjas]. ostias is at rank #46,705, tagged as anoun, pronounced [ˈost̪jas].

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 63103, this pair ranks #49,852 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of obvias vs ostias

Shared letters: aios. Private to "obvias": bv. Private to "ostias": t.

"obvias" · 6 letters · shape VCCVVC  ·  "ostias" · 6 letters · shape VCCVVC

Known mistypes of this pair

  • obvias ← bovias · obbias · obbvias · obivas · obvais · obviass · obvisa · obvvias
  • ostias ← ositas · osstias · ostais · ostiass · ostisa · osttias · otsias · sotias

Frequently Asked Questions

Can "obvias" and "ostias" be used interchangeably?
No - they are not even the same part of speech. "obvias" is a verb and "ostias" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "obvias" or "ostias"?
"obvias" is the more common of the two: it sits at frequency rank #16,398 in our Spanish list, against #46,705 for "ostias". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "obvias" and "ostias" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "obvias" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ostias" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #49,852 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "obvias" and "ostias" also get mixed up with nearby pairs, the highest-scored neighbour is "óseas vs ostias". 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 #49,852 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list