Which to use
“Ios” is a noun and “ISIS” is an abbrev - they look or sound alike but fill different roles in a sentence.
- #6,549
- “Ios” frequency rank
- #7,491
- “ISIS” frequency rank
- 14040
- confusion score
Side-by-Side Comparison
| Feature | Ios | ISIS |
|---|---|---|
| Definition | Genitiv Singular des Substantivs Io | Abkürzung für die Terrorgruppe „Islamischer Staat im Irak und Syrien“ bzw. „Islamischer Staat im Irak und in Syrien“ bzw. „Islamischer Staat im Irak und in (Groß-)Syrien“ |
Letter map: Ios vs ISIS
Shared letters muted; letters that set Ios and ISIS apart highlighted. Shared run: 2.
Part-of-speech tell for Ios / ISIS
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Ios is anoun and ISISanabbrev. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 14040, derived from the frequency rank of both members and their visual similarity.
Ios is recorded at frequency rank #6,549, classified as anoun, pronounced [ˈiːos]. ISIS is at rank #7,491, tagged as anabbrev.
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 14040, this pair ranks #1,953,979 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Ios vs ISIS
Shared letters: is. Private to "Ios": o. Private to "ISIS": -.
"Ios" · 3 letters · shape VVC · "ISIS" · 4 letters · shape VCVC
Known mistypes of this pair
- ISIS ← iiss · isiss · issi · issis · siis
Frequently Asked Questions
Is swapping "Ios" for "ISIS" ever safe?
In ordinary German text, does "Ios" or "ISIS" show up more?
Useful next steps
You've compared "Ios" and "ISIS". Here's where to go from here.
- Full dictionary entry for "Ios" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ISIS" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,953,979 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "Ios" and "ISIS" also get mixed up with nearby pairs, the highest-scored neighbour is "IMs vs ISIS". 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 #1,953,979 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.