IASvsicesConfusable pair

Which to use

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

#31,214
“IAS” frequency rank
#48,810
“ices” frequency rank
80024
confusion score

Side-by-Side Comparison

Feature IAS ices
Definition Initialism of indicated airspeed. plural of ice

Letter map: IAS vs ices

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

3 ch
IAS
4 ch
ices

Spelling & dictionary notes on IAS vs ices

IAS and ices 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 differ by 1 letter(s) in length. Our composite confusion score for this pair is 80024, derived from the frequency rank of both members and their visual similarity.

IAS is recorded at frequency rank #31,214, classified as anoun. ices is at rank #48,810, tagged as anoun, pronounced /ˈaɪsɪz/.

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 80024, this pair ranks #20,740 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of IAS vs ices

Shared letters: is. Private to "IAS": a. Private to "ices": ce.

"IAS" · 3 letters · shape VVC  ·  "ices" · 4 letters · shape VCVC

Known mistypes of this pair

  • ices ← cies · icces · icess · icse · iecs

Frequently Asked Questions

Can "IAS" and "ices" be used interchangeably?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Which is more common, "IAS" or "ices"?
"IAS" is the more common of the two: it sits at frequency rank #31,214 in our English list, against #48,810 for "ices". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "IAS" vs "ices" is on the table, pick a follow-up below.

  • Full dictionary entry for "IAS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ices" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #20,740 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "IAS" and "ices" also get mixed up with nearby pairs, the highest-scored neighbour is "ices vs ICJ". 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 #20,740 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