Which to use
“úlcera” is a noun and “uniera” is a verb - they look or sound alike but fill different roles in a sentence.
- #30,722
- “úlcera” frequency rank
- #32,023
- “uniera” frequency rank
- 62745
- confusion score
Side-by-Side Comparison
| Feature | úlcera | uniera |
|---|---|---|
| Definition | Lesión en la piel o en las mucosas, poco propensa a cicatrizar, que adopta forma de cráter y se acompaña de inflamación y a veces infección. | Primera persona del singular (yo) del pretérito imperfecto de subjuntivo de unir o de unirse. |
Where the eye mixes úlcera and uniera
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. úlcera (VCCVCV) and uniera (VCVVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: úlcera vs uniera
These two trip readers on the page rather than in the ear: úlcera is [ˈulseɾa] while uniera is [uˈnjeɾa]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 62745, derived from the frequency rank of both members and their visual similarity.
úlcera is recorded at frequency rank #30,722, classified as anoun, pronounced [ˈulseɾa]. uniera is at rank #32,023, tagged as averb, pronounced [uˈnjeɾa].
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 62745, this pair ranks #50,986 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of úlcera vs uniera
Shared letters: aer. Private to "úlcera": clú. Private to "uniera": inu.
"úlcera" · 6 letters · shape VCCVCV · "uniera" · 6 letters · shape VCVVCV
Known mistypes of this pair
- uniera ← nuiera · uinera · uneira · uniear · unierra · unirea · unniera
Frequently Asked Questions
Can "úlcera" and "uniera" be used interchangeably?
Frequency check: "úlcera" vs "uniera" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "úlcera" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "uniera" - compare definitions side by side with the headword page. Word entry
- This pair ranks #50,986 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "úlcera" and "uniera" also get mixed up with nearby pairs, the highest-scored neighbour is "uniera vs unieran". 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 #50,986 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.