IPA vs iz, What's the Difference?

Which to use

“IPA” is a name and “iz” is a verb - they look or sound alike but fill different roles in a sentence.

#19,373
“IPA” frequency rank: #32,457
“iz” frequency rank: 51830
confusion score

Side-by-Side Comparison

Feature	IPA	iz
Definition	Initialism of International Phonetic Alphabet.	third-person singular simple present indicative of be

Letter map: IPA vs iz

Shared letters muted; letters that set IPA and iz apart highlighted. Shared run: 1.

3 ch

IPA

2 ch

Grammar separator: IPA vs iz

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: IPA is aname and izaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 51830, derived from the frequency rank of both members and their visual similarity.

IPA is recorded at frequency rank #19,373, classified as aname, pronounced /ˌaɪ.piːˈeɪ/. 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 51830, this pair ranks #162,121 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of IPA vs iz

Shared letters: i. Private to "IPA": ap. Private to "iz": z.

"IPA" · 3 letters · shape VCV · "iz" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "IPA" for "iz" ever safe?

No - they are not even the same part of speech. "IPA" is a name and "iz" a verb, so a sentence built for one is usually ungrammatical with the other.

In ordinary English text, does "IPA" or "iz" show up more?

"IPA" is the more common of the two: it sits at frequency rank #19,373 in our English list, against #32,457 for "iz". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "IPA" vs "iz" is on the table, pick a follow-up below.

Full dictionary entry for "IPA" 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 #162,121 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"IPA" and "iz" also get mixed up with nearby pairs, the highest-scored neighbour is "ith vs iz". Nearby pair

Confusion rank #162,121 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.