Which to use
“decades” is a noun and “decide” is a verb - they look or sound alike but fill different roles in a sentence.
- #2,572
- “decades” frequency rank
- #1,715
- “decide” frequency rank
- 4287
- confusion score
Side-by-Side Comparison
| Feature | decades | decide |
|---|---|---|
| Definition | plural of decade. | To resolve (a contest, problem, dispute, etc.); to choose, determine, or settle. |
Where the eye mixes decades and decide
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Why the eye confuses decades with decide
These two trip readers on the page rather than in the ear: decades is /ˈdɛkeɪdz/ while decide is /dɪˈsaɪd/. 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 4287, derived from the frequency rank of both members and their visual similarity.
decades is recorded at frequency rank #2,572, classified as anoun, pronounced /ˈdɛkeɪdz/. decide is at rank #1,715, tagged as averb, pronounced /dɪˈsaɪd/.
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 4287, this pair ranks #519,422 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of decades vs decide
Shared letters: cde. Private to "decades": as. Private to "decide": i.
"decades" · 7 letters · shape CVCVCVC · "decide" · 6 letters · shape CVCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "decades" for "decide" ever safe?
Which is more common, "decades" or "decide"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "decades" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "decide" - compare definitions side by side with the headword page. Word entry
- This pair ranks #519,422 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "decades" and "decide" also get mixed up with nearby pairs, the highest-scored neighbour is "decibel vs decide". 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 #519,422 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.