Which to use
“terco” is an adjective and “tuerca” is a noun - they look or sound alike but fill different roles in a sentence.
- #29,415
- “terco” frequency rank
- #28,592
- “tuerca” frequency rank
- 58007
- confusion score
Side-by-Side Comparison
| Feature | terco | tuerca |
|---|---|---|
| Definition | Que no cambia su opinión o proceder, pese a las razones en sentido contrario. | Pieza que, dotada de una rosca interior, se acopla a un tornillo para fijar una unión. |
Where the eye mixes terco and tuerca
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between terco and tuerca
These two trip readers on the page rather than in the ear: terco is [ˈt̪eɾko] while tuerca is [ˈt̪weɾka]. 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 58007, derived from the frequency rank of both members and their visual similarity.
terco is recorded at frequency rank #29,415, classified as anadj, pronounced [ˈt̪eɾko]. tuerca is at rank #28,592, tagged as anoun, pronounced [ˈt̪weɾka].
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 58007, this pair ranks #68,144 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of terco vs tuerca
Shared letters: cert. Private to "terco": o. Private to "tuerca": au.
"terco" · 5 letters · shape CVCCV · "tuerca" · 6 letters · shape CVVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "terco" for "tuerca" ever safe?
Which is more common, "terco" or "tuerca"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "terco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "tuerca" - compare definitions side by side with the headword page. Word entry
- This pair ranks #68,144 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "terco" and "tuerca" also get mixed up with nearby pairs, the highest-scored neighbour is "terco vs termos". 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 #68,144 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.