ILSvsIonWhich spelling fits?

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

Which to use

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

#44,701
“ILS” frequency rank
#22,388
“Ion” frequency rank
67089
confusion score

Side-by-Side Comparison

Feature ILS Ion
Definition internationaler Währungscode für Schekel, die Währung von Israel elektrisch geladenes Teilchen, das aus einem neutralen Atom oder Molekül durch Anlagerung oder Abgabe von Elektronen (Ionisation) entsteht

Letter map: ILS vs Ion

Shared letters muted; letters that set ILS and Ion apart highlighted. Shared run: 1. ILS (VCC) and Ion (VVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ILS
3 ch
Ion

Part-of-speech tell for ILS / Ion

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ILS is anabbrev and Ionanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 67089, derived from the frequency rank of both members and their visual similarity.

ILS is recorded at frequency rank #44,701, classified as anabbrev. Ion is at rank #22,388, tagged as anoun, pronounced [iˈoːn].

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 67089, this pair ranks #551,638 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ILS vs Ion

Shared letters: i. Private to "ILS": ls. Private to "Ion": no.

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

Frequently Asked Questions

Can "ILS" and "Ion" be used interchangeably?
No - they are not even the same part of speech. "ILS" is an abbrev and "Ion" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ILS" vs "Ion" - which ranks higher?
"Ion" is the more common of the two: it sits at frequency rank #22,388 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.

Useful next steps

Pair "ILS" vs "Ion" is on the table, pick a follow-up below.

  • Full dictionary entry for "ILS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #551,638 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "ILS" and "Ion" also get mixed up with nearby pairs, the highest-scored neighbour is "ILS vs IMs". Nearby pair

Confusion rank #551,638 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