iconvsIOMTell them apart

Quick tell: icon is a noun, IOM is a name, so they fill different roles in a sentence.

Which to use

“icon” is a noun and “IOM” is a name - they look or sound alike but fill different roles in a sentence.

#5,504
“icon” frequency rank
#43,211
“IOM” frequency rank
48715
confusion score

Side-by-Side Comparison

Feature icon IOM
Definition An image, symbol, picture, portrait, or other representation, usually as an object of religious devotion. Initialism of Institute of Medicine.

Letter map: icon vs IOM

Shared letters muted; letters that set icon and IOM apart highlighted. Shared run: 2. icon runs 4 letters (VCVC) against IOM's 3 (VVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
icon
3 ch
IOM

Role in the sentence - icon and IOM

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: icon is anoun and IOManame. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48715, 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/. IOM is at rank #43,211, tagged as aname.

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 48715, this pair ranks #190,438 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of icon vs IOM

Shared letters: io. Private to "icon": cn. Private to "IOM": m.

"icon" · 4 letters · shape VCVC  ·  "IOM" · 3 letters · shape VVC

Known mistypes of this pair

  • icon ← iccon · icno · iconn · iocn

Frequently Asked Questions

Is swapping "icon" for "IOM" ever safe?
No - they are not even the same part of speech. "icon" is a noun and "IOM" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "icon" or "IOM" show up more?
"icon" is the more common of the two: it sits at frequency rank #5,504 in our English list, against #43,211 for "IOM". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "icon" and "IOM".

  • Full dictionary entry for "icon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "IOM" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,438 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "icon" and "IOM" also get mixed up with nearby pairs, the highest-scored neighbour is "IOM 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 #190,438 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