Which to use
“infra” is an adverb and “inna” is a contraction - they look or sound alike but fill different roles in a sentence.
- #32,864
- “infra” frequency rank
- #47,692
- “inna” frequency rank
- 80556
- confusion score
Side-by-Side Comparison
| Feature | infra | inna |
|---|---|---|
| Definition | Discussed later. | In the. |
Letter map: infra vs inna
Shared letters muted; letters that set infra and inna apart highlighted. Shared run: 3. infra runs 5 letters (VCCCV) against inna's 4 (VCCV) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: infra vs inna
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: infra is anadverb and innaacontraction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 80556, derived from the frequency rank of both members and their visual similarity.
infra is recorded at frequency rank #32,864, classified as anadv, pronounced /ˈɪn.fɹə/. inna is at rank #47,692, tagged as acontraction.
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 80556, this pair ranks #19,553 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of infra vs inna
Shared letters: ain. Private to "infra": fr. Private to "inna": -.
"infra" · 5 letters · shape VCCCV · "inna" · 4 letters · shape VCCV
Known mistypes of this pair
Frequently Asked Questions
Do "infra" and "inna" mean the same thing in a sentence?
Frequency check: "infra" vs "inna" - which ranks higher?
After this comparison
Done with this confusable. These links stay specific to "infra" and "inna".
- Full dictionary entry for "infra" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "inna" - compare definitions side by side with the headword page. Word entry
- This pair ranks #19,553 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "infra" and "inna" also get mixed up with nearby pairs, the highest-scored neighbour is "inna vs isha". 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 #19,553 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.