Which to use
“isu” is a noun and “iz” is a verb - they look or sound alike but fill different roles in a sentence.
- #37,989
- “isu” frequency rank
- #32,457
- “iz” frequency rank
- 70446
- confusion score
Side-by-Side Comparison
| Feature | isu | iz |
|---|---|---|
| Definition | An individual seat in the loft-like balcony of a sumo arena. | third-person singular simple present indicative of be |
Letter map: isu vs iz
Shared letters muted; letters that set isu and iz apart highlighted. Shared run: 1.
Role in the sentence - isu and iz
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: isu is anoun and izaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 70446, derived from the frequency rank of both members and their visual similarity.
isu is recorded at frequency rank #37,989, classified as anoun. iz is at rank #32,457, tagged as averb.
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 70446, this pair ranks #50,544 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of isu vs iz
Shared letters: i. Private to "isu": su. Private to "iz": z.
"isu" · 3 letters · shape VCV · "iz" · 2 letters · shape VC
Frequently Asked Questions
Do "isu" and "iz" mean the same thing in a sentence?
Which is more common, "isu" or "iz"?
Useful next steps
Done with this confusable. These links stay specific to "isu" and "iz".
- Full dictionary entry for "isu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iz" - compare definitions side by side with the headword page. Word entry
- This pair ranks #50,544 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "isu" and "iz" also get mixed up with nearby pairs, the highest-scored neighbour is "isu vs ith". Nearby pair
Confusion rank #50,544 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.