trimestrevstrimestresWhich spelling fits?

Which to use

“trimestre” and “trimestres” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#7,638
“trimestre” frequency rank
#39,503
“trimestres” frequency rank
47141
confusion score

Side-by-Side Comparison

Feature trimestre trimestres
Definition Período de tres meses de duración. Forma del plural de trimestre.

Where the eye mixes trimestre and trimestres

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. trimestre runs 9 letters (CCVCVCCCV) against trimestres's 10 (CCVCVCCCVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
trimestre
10 ch
trimestres

Why the eye confuses trimestre with trimestres

A purely visual mix-up. trimestre ([t̪ɾiˈmest̪ɾe]) and trimestres ([t̪ɾiˈmest̪ɾes]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “trimestre” sits inside “trimestres”. Our composite confusion score for this pair is 47141, derived from the frequency rank of both members and their visual similarity.

trimestre is recorded at frequency rank #7,638, classified as anoun, pronounced [t̪ɾiˈmest̪ɾe]. trimestres is at rank #39,503, tagged as anoun, pronounced [t̪ɾiˈmest̪ɾes].

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 47141, this pair ranks #121,702 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of trimestre vs trimestres

Shared letters: eimrst. Private to "trimestre": -. Private to "trimestres": -.

"trimestre" · 9 letters · shape CCVCVCCCV  ·  "trimestres" · 10 letters · shape CCVCVCCCVC

Known mistypes of this pair

  • trimestre ← rtimestre · tirmestre · triemstre · trimesrte · trimesstre · trimester · trimestrre · trimesttre
  • trimestres ← rtimestres · tirmestres · triemstres · trimesrtes · trimesstres · trimesters · trimestress · trimestrres

Frequently Asked Questions

Is swapping "trimestre" for "trimestres" ever safe?
No. They are said differently ([t̪ɾiˈmest̪ɾe] versus [t̪ɾiˈmest̪ɾes]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "trimestre" or "trimestres"?
"trimestre" is the more common of the two: it sits at frequency rank #7,638 in our Spanish list, against #39,503 for "trimestres". 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 "trimestre" and "trimestres" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "trimestre" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "trimestres" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #121,702 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "trimestre" and "trimestres" also get mixed up with nearby pairs, the highest-scored neighbour is "trimestrales vs trimestres". 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 #121,702 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