Which to use
“illusion” and “infusion” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #7,803
- “illusion” frequency rank
- #19,869
- “infusion” frequency rank
- 27672
- confusion score
Side-by-Side Comparison
| Feature | illusion | infusion |
|---|---|---|
| Definition | Anything that seems to be something that it is not. | A product consisting of a liquid which has had other ingredients steeped in it to extract useful qualities. |
Where the spellings diverge
Shared letters are muted; the letters that actually set illusion and infusion apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A purely visual mix-up. illusion (/ɪˈl(j)uːʒ(ə)n/) and infusion (/ɪnˈfjuːʒən/) 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 27672, derived from the frequency rank of both members and their visual similarity.
illusion is recorded at frequency rank #7,803, classified as anoun, pronounced /ɪˈl(j)uːʒ(ə)n/. infusion is at rank #19,869, tagged as anoun, pronounced /ɪnˈfjuːʒən/.
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 27672, this pair ranks #377,069 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of illusion vs infusion
Shared letters: inosu. Private to "illusion": l. Private to "infusion": f.
"illusion" · 8 letters · shape VCCVCVVC · "infusion" · 8 letters · shape VCCVCVVC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "illusion" and "infusion" be used interchangeably?
Which is more common, "illusion" or "infusion"?
Remembering illusion vs infusion
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “illusion” entry
- Browse more pairs most likely to be confused. Most confusable