Which to use
“ill” is an adverb and “IPA” is an abbrev - they look or sound alike but fill different roles in a sentence.
- #25,175
- “ill” frequency rank
- #43,994
- “IPA” frequency rank
- 69169
- confusion score
Side-by-Side Comparison
| Feature | ill | IPA |
|---|---|---|
| Definition | schlecht, falsch | Internationales Phonetisches Alphabet |
Where the eye mixes ill and IPA
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ill (VCC) and IPA (VCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses ill with IPA
These two trip readers on the page rather than in the ear: ill is [ɪl] while IPA is [ˌiːpeːˈʔaː]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adverb vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 69169, derived from the frequency rank of both members and their visual similarity.
ill is recorded at frequency rank #25,175, classified as anadv, pronounced [ɪl]. IPA is at rank #43,994, tagged as anabbrev, pronounced [ˌiːpeːˈʔaː].
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 69169, this pair ranks #484,895 of 2,006,359 scored German confusable pairs - among the most confusable pairs.
Orthographic DNA of ill vs IPA
Shared letters: i. Private to "ill": l. Private to "IPA": ap.
"ill" · 3 letters · shape VCC · "IPA" · 3 letters · shape VCV
Frequently Asked Questions
Can "ill" and "IPA" be used interchangeably?
Which is more common, "ill" or "IPA"?
What to do next
Eye-level mix-up between "ill" and "IPA" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ill" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "IPA" - compare definitions side by side with the headword page. Word entry
- This pair ranks #484,895 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "ill" and "IPA" also get mixed up with nearby pairs, the highest-scored neighbour is "IMs vs IPA". Nearby pair
Confusion rank #484,895 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.