penosavspensoWhich spelling fits?

Quick tell: penosa is a adjective, penso is a noun, so they fill different roles in a sentence.

Which to use

“penosa” is an adjective and “penso” is a noun - they look or sound alike but fill different roles in a sentence.

#28,869
“penosa” frequency rank
#37,774
“penso” frequency rank
66643
confusion score

Side-by-Side Comparison

Feature penosa penso
Definition Forma del femenino de penoso. Pensamiento.

Where the eye mixes penosa and penso

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. penosa runs 6 letters (CVCVCV) against penso's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
penosa
5 ch
penso

Visual trap between penosa and penso

These two trip readers on the page rather than in the ear: penosa is [peˈnosa] while penso is /ˈpenso/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 66643, derived from the frequency rank of both members and their visual similarity.

penosa is recorded at frequency rank #28,869, classified as anadj, pronounced [peˈnosa]. penso is at rank #37,774, tagged as anoun, pronounced /ˈpenso/.

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 66643, this pair ranks #39,302 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of penosa vs penso

Shared letters: enops. Private to "penosa": a. Private to "penso": -.

"penosa" · 6 letters · shape CVCVCV  ·  "penso" · 5 letters · shape CVCCV

Known mistypes of this pair

  • penosa ← epnosa · pennosa · penoas · penossa · pensoa · peonsa · pneosa · ppenosa
  • penso ← epnso · pennso · penos · pensso · pesno · pneso · ppenso

Frequently Asked Questions

Do "penosa" and "penso" mean the same thing in a sentence?
No - they are not even the same part of speech. "penosa" is an adjective and "penso" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "penosa" or "penso"?
"penosa" is the more common of the two: it sits at frequency rank #28,869 in our Spanish list, against #37,774 for "penso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "penosa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "penso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #39,302 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "penosa" and "penso" also get mixed up with nearby pairs, the highest-scored neighbour is "pence vs penso". 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 #39,302 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