ISISvsisleConfusable pair

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

Which to use

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

#7,491
“ISIS” frequency rank
#41,260
“isle” frequency rank
48751
confusion score

Side-by-Side Comparison

Feature ISIS isle
Definition 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“ die Insel oder kleine Insel

Letter map: ISIS vs isle

Shared letters muted; letters that set ISIS and isle apart highlighted. Shared run: 2. ISIS (VCVC) and isle (VCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
ISIS
4 ch
isle

Grammar separator: ISIS vs isle

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ISIS is anabbrev and isleanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 48751, derived from the frequency rank of both members and their visual similarity.

ISIS is recorded at frequency rank #7,491, classified as anabbrev. isle is at rank #41,260, tagged as anoun, pronounced [aɪl].

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 48751, this pair ranks #1,237,025 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ISIS vs isle

Shared letters: is. Private to "ISIS": -. Private to "isle": el.

"ISIS" · 4 letters · shape VCVC  ·  "isle" · 4 letters · shape VCCV

Known mistypes of this pair

  • ISIS ← iiss · isiss · issi · issis · siis
  • isle ← isel · islle · issle · sile

Frequently Asked Questions

Is swapping "ISIS" for "isle" ever safe?
No - they are not even the same part of speech. "ISIS" is an abbrev and "isle" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "ISIS" or "isle" show up more?
"ISIS" is the more common of the two: it sits at frequency rank #7,491 in our German list, against #41,260 for "isle". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "ISIS" vs "isle" is on the table, pick a follow-up below.

  • Full dictionary entry for "ISIS" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "isle" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,237,025 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "ISIS" and "isle" also get mixed up with nearby pairs, the highest-scored neighbour is "ile vs isle". 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 #1,237,025 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