decadevsdecidiWhat's the difference?

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

Which to use

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

#42,866
“decade” frequency rank
#3,675
“decidi” frequency rank
46541
confusion score

Side-by-Side Comparison

Feature decade decidi
Definition década primeira pessoa do singular do pretérito perfeito do indicativo do verbo decidir

Letter map: decade vs decidi

Shared letters muted; letters that set decade and decidi apart highlighted. Shared run: 4.

6 ch
decade
6 ch
decidi

Role in the sentence - decade and decidi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: decade is anoun and decidiaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 46541, derived from the frequency rank of both members and their visual similarity.

decade is recorded at frequency rank #42,866, classified as anoun. decidi is at rank #3,675, tagged as averb, pronounced /de.sɪˈʤi/.

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 46541, this pair ranks #18,748 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of decade vs decidi

Shared letters: cde. Private to "decade": a. Private to "decidi": i.

"decade" · 6 letters · shape CVCVCV  ·  "decidi" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • decadedceade · ddecade · deacde · decadde · decaed · deccade · decdae · edcade
  • decididceidi · ddecidi · deccidi · decdii · deciddi · deciid · deicdi · edcidi

Frequently Asked Questions

Do "decade" and "decidi" mean the same thing in a sentence?
No - they are not even the same part of speech. "decade" is a noun and "decidi" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "decade" vs "decidi" - which ranks higher?
"decidi" is the more common of the two: it sits at frequency rank #3,675 in our Portuguese list, against #42,866 for "decade". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "decade" and "decidi". Here's where to go from here.

  • Full dictionary entry for "decade" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "decidi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,748 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "decade" and "decidi" also get mixed up with nearby pairs, the highest-scored neighbour is "decade vs declare". 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 #18,748 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list