Which to use
“decision” and “delusion” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #847
- “decision” frequency rank
- #17,815
- “delusion” frequency rank
- 18662
- confusion score
Side-by-Side Comparison
| Feature | decision | delusion |
|---|---|---|
| Definition | The act of deciding. | A false belief that is resistant to confrontation with actual facts. |
Where the eye mixes decision and delusion
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Visual trap between decision and delusion
A purely visual mix-up. decision (/dɪˈsɪʒn̩/) and delusion (/dɪˈl(j)uːʒ(ə)n/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 18662, derived from the frequency rank of both members and their visual similarity.
decision is recorded at frequency rank #847, classified as anoun, pronounced /dɪˈsɪʒn̩/. delusion is at rank #17,815, tagged as anoun, pronounced /dɪˈl(j)uːʒ(ə)n/.
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 18662, this pair ranks #443,363 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of decision vs delusion
Shared letters: deinos. Private to "decision": c. Private to "delusion": lu.
"decision" · 8 letters · shape CVCVCVVC · "delusion" · 8 letters · shape CVCVCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "decision" and "delusion" mean the same thing in a sentence?
In ordinary English text, does "decision" or "delusion" show up more?
Useful next steps
Eye-level mix-up between "decision" and "delusion" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "decision" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "delusion" - compare definitions side by side with the headword page. Word entry
- This pair ranks #443,363 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "decision" and "delusion" also get mixed up with nearby pairs, the highest-scored neighbour is "delusion vs derision". 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 #443,363 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.