Which to use
“IMO” and “iOS” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,045
- “IMO” frequency rank
- #5,888
- “iOS” frequency rank
- 16933
- confusion score
Side-by-Side Comparison
| Feature | IMO | iOS |
|---|---|---|
| Definition | Initialism of International Maritime Organization. | A mobile operating system (OS) created and developed by Apple Inc. exclusively for its hardware. |
Letter map: IMO vs iOS
Shared letters muted; letters that set IMO and iOS apart highlighted. Shared run: 2.
Corpus notes: IMO and iOS
IMO and iOS are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 16933, derived from the frequency rank of both members and their visual similarity.
IMO is recorded at frequency rank #11,045, classified as aname. iOS is at rank #5,888, 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 16933, this pair ranks #454,668 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of IMO vs iOS
Shared letters: io. Private to "IMO": m. Private to "iOS": s.
"IMO" · 3 letters · shape VCV · "iOS" · 3 letters · shape VVC
Frequently Asked Questions
Can "IMO" and "iOS" be used interchangeably?
Which is more common, "IMO" or "iOS"?
After this comparison
Pair "IMO" vs "iOS" is on the table, pick a follow-up below.
- Full dictionary entry for "IMO" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iOS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #454,668 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "IMO" and "iOS" also get mixed up with nearby pairs, the highest-scored neighbour is "IMO vs ith". Nearby pair
Confusion rank #454,668 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.