ibisvsIIWhich spelling fits?

Which to use

“ibis” and “II” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#35,763
“ibis” frequency rank
#1,020
“II” frequency rank
36783
confusion score

Side-by-Side Comparison

Feature ibis II
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. Initialism of illegal immigrant.

Letter map: ibis vs II

Shared letters muted; letters that set ibis and II apart highlighted. Shared run: 2. ibis runs 4 letters (VCVC) against II's 2 (VV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
ibis
2 ch
II

Pair insight - ibis / II

ibis and II are indexed as a confusable English 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 2 letter(s) in length. Our composite confusion score for this pair is 36783, 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/. II is at rank #1,020, tagged as anoun.

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 36783, this pair ranks #300,175 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ibis vs II

Shared letters: i. Private to "ibis": bs. Private to "II": -.

"ibis" · 4 letters · shape VCVC  ·  "II" · 2 letters · shape VV

Known mistypes of this pair

  • ibis ← biis · ibbis · ibiss · ibsi · iibs

Frequently Asked Questions

Do "ibis" and "II" mean the same thing in a sentence?
No. They differ by 2 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "ibis" vs "II" - which ranks higher?
"II" is the more common of the two: it sits at frequency rank #1,020 in our English list, against #35,763 for "ibis". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Done with this confusable. These links stay specific to "ibis" and "II".

  • Full dictionary entry for "ibis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "II" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #300,175 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ibis" and "II" 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 #300,175 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list