Which to use
“terco” is an adjective and “tuco” is a noun - they look or sound alike but fill different roles in a sentence.
- #29,415
- “terco” frequency rank
- #40,583
- “tuco” frequency rank
- 69998
- confusion score
Side-by-Side Comparison
| Feature | terco | tuco |
|---|---|---|
| Definition | Que no cambia su opinión o proceder, pese a las razones en sentido contrario. | tipo de salsa de tomate de Argentina, Chile, Paraguay, Perú y Uruguay similar a un ragú o una boloñesa. |
Where the eye mixes terco and tuco
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. terco runs 5 letters (CVCCV) against tuco's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between terco and tuco
These two trip readers on the page rather than in the ear: terco is [ˈt̪eɾko] while tuco is [ˈt̪uko]. 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 69998, 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]. tuco is at rank #40,583, tagged as anoun, pronounced [ˈt̪uko].
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 69998, this pair ranks #30,706 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of terco vs tuco
Shared letters: cot. Private to "terco": er. Private to "tuco": u.
"terco" · 5 letters · shape CVCCV · "tuco" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Can "terco" and "tuco" be used interchangeably?
Which is more common, "terco" or "tuco"?
After this comparison
Eye-level mix-up between "terco" and "tuco" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "terco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "tuco" - compare definitions side by side with the headword page. Word entry
- This pair ranks #30,706 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "terco" and "tuco" also get mixed up with nearby pairs, the highest-scored neighbour is "tapo vs tuco". 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 #30,706 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.