ILSvsIosWhich spelling fits?

Quick tell: ILS is a abbrev, Ios is a noun, so they fill different roles in a sentence.

Which to use

“ILS” is an abbrev and “Ios” is a noun - they look or sound alike but fill different roles in a sentence.

#44,701
“ILS” frequency rank
#6,549
“Ios” frequency rank
51250
confusion score

Side-by-Side Comparison

Feature ILS Ios
Definition internationaler Währungscode für Schekel, die Währung von Israel Genitiv Singular des Substantivs Io

Letter map: ILS vs Ios

Shared letters muted; letters that set ILS and Ios apart highlighted. Shared run: 2.

3 ch
ILS
3 ch
Ios

Grammar separator: ILS vs Ios

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ILS is anabbrev and Iosanoun. On the page they differ by a single letter - l in “ILS” becomes o in “Ios”. Our composite confusion score for this pair is 51250, derived from the frequency rank of both members and their visual similarity.

ILS is recorded at frequency rank #44,701, classified as anabbrev. Ios is at rank #6,549, tagged as anoun, pronounced [ˈiːos].

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 51250, this pair ranks #1,142,722 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ILS vs Ios

Shared letters: is. Private to "ILS": l. Private to "Ios": o.

"ILS" · 3 letters · shape VCC  ·  "Ios" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "ILS" for "Ios" ever safe?
No - they are not even the same part of speech. "ILS" is an abbrev and "Ios" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ILS" or "Ios"?
"Ios" is the more common of the two: it sits at frequency rank #6,549 in our German list, against #44,701 for "ILS". 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 "ILS" and "Ios".

  • Full dictionary entry for "ILS" 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 #1,142,722 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "ILS" and "Ios" also get mixed up with nearby pairs, the highest-scored neighbour is "ILS vs IMs". Nearby pair

Confusion rank #1,142,722 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list