décadavsdecidWhich spelling fits?

Quick tell: década is a noun, decid is a verb, so they fill different roles in a sentence.

Which to use

“década” is a noun and “decid” is a verb - they look or sound alike but fill different roles in a sentence.

#2,078
“década” frequency rank
#40,228
“decid” frequency rank
42306
confusion score

Side-by-Side Comparison

Feature década decid
Definition Período de diez años. Segunda persona del plural (vosotros, vosotras) del imperativo afirmativo de decir.

Where the eye mixes década and decid

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

6 ch
década
5 ch
decid

Visual trap between década and decid

These two trip readers on the page rather than in the ear: década is [ˈd̪ekað̞a] while decid is [d̪eˈsið̞]. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 42306, derived from the frequency rank of both members and their visual similarity.

década is recorded at frequency rank #2,078, classified as anoun, pronounced [ˈd̪ekað̞a]. decid is at rank #40,228, tagged as averb, pronounced [d̪eˈsið̞].

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 42306, this pair ranks #148,960 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of década vs decid

Shared letters: cd. Private to "década": . Private to "decid": ei.

"década" · 6 letters · shape CVCVCV  ·  "decid" · 5 letters · shape CVCVC

Known mistypes of this pair

  • deciddceid · ddecid · deccid · decdi · decidd · deicd · desid · edcid

Frequently Asked Questions

Can "década" and "decid" be used interchangeably?
No - they are not even the same part of speech. "década" is a noun and "decid" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "década" or "decid" show up more?
"década" is the more common of the two: it sits at frequency rank #2,078 in our Spanish list, against #40,228 for "decid". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "década" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "decid" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #148,960 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "década" and "decid" also get mixed up with nearby pairs, the highest-scored neighbour is "decid vs deli". 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 #148,960 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