iOSvsireWhich spelling fits?

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

Which to use

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

#5,888
“iOS” frequency rank
#21,834
“ire” frequency rank
27722
confusion score

Side-by-Side Comparison

Feature iOS ire
Definition A mobile operating system (OS) created and developed by Apple Inc. exclusively for its hardware. Iron.

Letter map: iOS vs ire

Shared letters muted; letters that set iOS and ire apart highlighted. Shared run: 1.

3 ch
iOS
3 ch
ire

Role in the sentence - iOS and ire

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: iOS is aname and ireanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 27722, derived from the frequency rank of both members and their visual similarity.

iOS is recorded at frequency rank #5,888, classified as aname. ire is at rank #21,834, tagged as anoun, pronounced /aɪ.ɚ/.

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 27722, this pair ranks #376,625 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of iOS vs ire

Shared letters: i. Private to "iOS": os. Private to "ire": er.

"iOS" · 3 letters · shape VVC  ·  "ire" · 3 letters · shape VCV

Frequently Asked Questions

Can "iOS" and "ire" be used interchangeably?
No - they are not even the same part of speech. "iOS" is a name and "ire" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "iOS" vs "ire" - which ranks higher?
"iOS" is the more common of the two: it sits at frequency rank #5,888 in our English list, against #21,834 for "ire". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "iOS" and "ire".

  • Full dictionary entry for "iOS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ire" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #376,625 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "iOS" and "ire" also get mixed up with nearby pairs, the highest-scored neighbour is "ire vs ith". Nearby pair

Confusion rank #376,625 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