iconvsisoWhich spelling fits?

Which to use

“icon” and “iso” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#5,504
“icon” frequency rank
#9,771
“iso” frequency rank
15275
confusion score

Side-by-Side Comparison

Feature icon iso
Definition An image, symbol, picture, portrait, or other representation, usually as an object of religious devotion. Clipping of isolation.

Where the eye mixes icon and iso

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
icon
3 ch
iso

Visual trap between icon and iso

A purely visual mix-up. icon (/ˈaɪ.kɒn/) and iso (/ˈaɪsəʊ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 15275, derived from the frequency rank of both members and their visual similarity.

icon is recorded at frequency rank #5,504, classified as anoun, pronounced /ˈaɪ.kɒn/. iso is at rank #9,771, tagged as anoun, pronounced /ˈaɪsəʊ/.

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 15275, this pair ranks #464,999 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of icon vs iso

Shared letters: io. Private to "icon": cn. Private to "iso": s.

"icon" · 4 letters · shape VCVC  ·  "iso" · 3 letters · shape VCV

Known mistypes of this pair

  • iconiccon · icno · iconn · iocn

Frequently Asked Questions

Is swapping "icon" for "iso" ever safe?
No. They are said differently (/ˈaɪ.kɒn/ versus /ˈaɪsəʊ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "icon" or "iso"?
"icon" is the more common of the two: it sits at frequency rank #5,504 in our English list, against #9,771 for "iso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "icon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #464,999 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "icon" and "iso" also get mixed up with nearby pairs, the highest-scored neighbour is "iso vs ith". 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 #464,999 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list