Which to use
“ibis” is a noun and “ISIL” is a name - they look or sound alike but fill different roles in a sentence.
- #35,763
- “ibis” frequency rank
- #18,597
- “ISIL” frequency rank
- 54360
- confusion score
Side-by-Side Comparison
| Feature | ibis | ISIL |
|---|---|---|
| Definition | Any of various long-legged wading birds in the family Threskiornithidae, having long downcurved bills used to probe the mud for prey such as crustaceans. | Synonym of ISIS. |
Where the eye mixes ibis and ISIL
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between ibis and ISIL
These two trip readers on the page rather than in the ear: ibis is /ˈaɪ.bɪs/ while ISIL is /ˈaɪsəl/. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 54360, derived from the frequency rank of both members and their visual similarity.
ibis is recorded at frequency rank #35,763, classified as anoun, pronounced /ˈaɪ.bɪs/. ISIL is at rank #18,597, tagged as aname, pronounced /ˈaɪsəl/.
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 54360, this pair ranks #141,676 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ibis vs ISIL
Shared letters: is. Private to "ibis": b. Private to "ISIL": l.
"ibis" · 4 letters · shape VCVC · "ISIL" · 4 letters · shape VCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ibis" for "ISIL" ever safe?
Frequency check: "ibis" vs "ISIL" - which ranks higher?
What to do next
Eye-level mix-up between "ibis" and "ISIL" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "ibis" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ISIL" - compare definitions side by side with the headword page. Word entry
- This pair ranks #141,676 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "ibis" and "ISIL" also get mixed up with nearby pairs, the highest-scored neighbour is "ibis vs ices". 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 #141,676 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.