IosvsiusWhich spelling fits?

Which to use

“Ios” and “ius” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#6,549
“Ios” frequency rank
#48,256
“ius” frequency rank
54805
confusion score

Side-by-Side Comparison

Feature Ios ius
Definition Genitiv Singular des Substantivs Io Recht (Satzung, Inbegriff von Gesetzen und Verordnungen)

Letter map: Ios vs ius

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

3 ch
Ios
3 ch
ius

Spelling & dictionary notes on Ios vs ius

Ios and ius are indexed as a confusable German 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 a single letter - o in “Ios” becomes u in “ius”. Our composite confusion score for this pair is 54805, 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]. ius is at rank #48,256, tagged as anoun, pronounced […].

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 54805, this pair ranks #1,004,301 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Ios vs ius

Shared letters: is. Private to "Ios": o. Private to "ius": u.

"Ios" · 3 letters · shape VVC  ·  "ius" · 3 letters · shape VVC

Frequently Asked Questions

Can "Ios" and "ius" be used interchangeably?
No. They differ by a single letter - o in “Ios” becomes u in “ius”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "Ios" vs "ius" - which ranks higher?
"Ios" is the more common of the two: it sits at frequency rank #6,549 in our German list, against #48,256 for "ius". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "Ios" vs "ius" is on the table, pick a follow-up below.

  • Full dictionary entry for "Ios" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ius" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,004,301 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Ios" and "ius" also get mixed up with nearby pairs, the highest-scored neighbour is "ius vs puzzles". Nearby pair

Confusion rank #1,004,301 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