iivsISISConfusable pair

Quick tell: ii is a unknown, ISIS is an abbrev, so they fill different roles in a sentence.

Which to use

“ii” is an unknown and “ISIS” is an abbrev - they look or sound alike but fill different roles in a sentence.

#520
“ii” frequency rank
#7,491
“ISIS” frequency rank
8011
confusion score

Side-by-Side Comparison

Feature ii ISIS
Definition Nominativ Plural Maskulinum des Pronomens is 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: ii vs ISIS

Shared letters muted; letters that set ii and ISIS apart highlighted. Shared run: 2.

2 ch
ii
4 ch
ISIS

Part-of-speech tell for ii / ISIS

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ii is anunknown and ISISanabbrev. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 8011, derived from the frequency rank of both members and their visual similarity.

ii is recorded at frequency rank #520, classified as anunknown, pronounced […]. 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 8011, this pair ranks #1,985,967 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ii vs ISIS

Shared letters: i. Private to "ii": -. Private to "ISIS": s.

"ii" · 2 letters · shape VV  ·  "ISIS" · 4 letters · shape VCVC

Known mistypes of this pair

  • ISISiiss · isiss · issi · issis · siis

Frequently Asked Questions

Can "ii" and "ISIS" be used interchangeably?
No - they are not even the same part of speech. "ii" is an unknown and "ISIS" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "ii" or "ISIS" show up more?
"ii" is the more common of the two: it sits at frequency rank #520 in our German list, against #7,491 for "ISIS". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "ii" and "ISIS". Here's where to go from here.

  • Full dictionary entry for "ii" 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 #1,985,967 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "ii" 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 #1,985,967 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