Which to use
“década” is a noun and “decidi” is a verb - they look or sound alike but fill different roles in a sentence.
- #1,775
- “década” frequency rank
- #3,675
- “decidi” frequency rank
- 5450
- confusion score
Side-by-Side Comparison
| Feature | década | decidi |
|---|---|---|
| Definition | período de dez unidades | primeira pessoa do singular do pretérito perfeito do indicativo do verbo decidir |
Where the eye mixes década and decidi
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between década and decidi
These two trip readers on the page rather than in the ear: década is /ˈdɛ.kɐ.dɐ/ while decidi is /de.sɪˈʤi/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 5450, derived from the frequency rank of both members and their visual similarity.
década is recorded at frequency rank #1,775, classified as anoun, pronounced /ˈdɛ.kɐ.dɐ/. 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 5450, this pair ranks #69,165 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of década vs decidi
Shared letters: cd. Private to "década": aé. Private to "decidi": ei.
"década" · 6 letters · shape CVCVCV · "decidi" · 6 letters · shape CVCVCV
Known mistypes of this pair
- decidi ← dceidi · ddecidi · deccidi · decdii · deciddi · deciid · deicdi · edcidi
Frequently Asked Questions
Do "década" and "decidi" mean the same thing in a sentence?
Frequency check: "década" vs "decidi" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "década" 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 #69,165 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "década" and "decidi" also get mixed up with nearby pairs, the highest-scored neighbour is "decade vs decidi". 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 #69,165 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.