deceniovsdeceniosWhich spelling fits?

Which to use

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

#37,541
“decenio” frequency rank
#44,096
“decenios” frequency rank
81637
confusion score

Side-by-Side Comparison

Feature decenio decenios
Definition Transcurso de diez años. Forma del plural de decenio.

Where the eye mixes decenio and decenios

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

7 ch
decenio
8 ch
decenios

Why the eye confuses decenio with decenios

A purely visual mix-up. decenio ([d̪eˈsenjo]) and decenios ([d̪eˈsenjos]) 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) - “decenio” sits inside “decenios”. Our composite confusion score for this pair is 81637, derived from the frequency rank of both members and their visual similarity.

decenio is recorded at frequency rank #37,541, classified as anoun, pronounced [d̪eˈsenjo]. decenios is at rank #44,096, tagged as anoun, pronounced [d̪eˈsenjos].

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 81637, this pair ranks #10,168 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of decenio vs decenios

Shared letters: cdeino. Private to "decenio": -. Private to "decenios": s.

"decenio" · 7 letters · shape CVCVCVV  ·  "decenios" · 8 letters · shape CVCVCVVC

Known mistypes of this pair

  • deceniodceenio · ddecenio · deccenio · deceino · decennio · decenoi · decneio · deecnio
  • deceniosdceenios · ddecenios · deccenios · deceinos · decenioss · deceniso · decennios · decenois

Frequently Asked Questions

Is swapping "decenio" for "decenios" ever safe?
No. They are said differently ([d̪eˈsenjo] versus [d̪eˈsenjos]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "decenio" vs "decenios" - which ranks higher?
"decenio" is the more common of the two: it sits at frequency rank #37,541 in our Spanish list, against #44,096 for "decenios". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "decenio" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "decenios" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #10,168 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "decenio" and "decenios" also get mixed up with nearby pairs, the highest-scored neighbour is "decenio vs devenido". 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 #10,168 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