Which to use
“decided” is a verb and “decider” is a noun - they look or sound alike but fill different roles in a sentence.
- #846
- “decided” frequency rank
- #34,460
- “decider” frequency rank
- 35306
- confusion score
Side-by-Side Comparison
| Feature | decided | decider |
|---|---|---|
| Definition | simple past and past participle of decide | A person, divinity, or authoritative text which decides. |
Where the eye mixes decided and decider
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Why the eye confuses decided with decider
These two trip readers on the page rather than in the ear: decided is /dɪˈsaɪ.dɪd/ while decider is /dɪˈsaɪdə(ɹ)/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - d in “decided” becomes r in “decider”, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35306, derived from the frequency rank of both members and their visual similarity.
decided is recorded at frequency rank #846, classified as averb, pronounced /dɪˈsaɪ.dɪd/. decider is at rank #34,460, tagged as anoun, pronounced /dɪˈsaɪdə(ɹ)/.
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 35306, this pair ranks #313,097 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of decided vs decider
Shared letters: cdei. Private to "decided": -. Private to "decider": r.
"decided" · 7 letters · shape CVCVCVC · "decider" · 7 letters · shape CVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "decided" and "decider" be used interchangeably?
Frequency check: "decided" vs "decider" - which ranks higher?
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 "decided" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "decider" - compare definitions side by side with the headword page. Word entry
- This pair ranks #313,097 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "decided" and "decider" also get mixed up with nearby pairs, the highest-scored neighbour is "decibel vs decider". 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 #313,097 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.