Which to use
“info” is a noun and “infra” is an adverb - they look or sound alike but fill different roles in a sentence.
- #2,489
- “info” frequency rank
- #32,864
- “infra” frequency rank
- 35353
- confusion score
Side-by-Side Comparison
| Feature | info | infra |
|---|---|---|
| Definition | information. | Discussed later. |
Where the eye mixes info and infra
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. info runs 4 letters (VCCV) against infra's 5 (VCCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses info with infra
These two trip readers on the page rather than in the ear: info is /ˈɪnfəʊ/ while infra is /ˈɪn.fɹə/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 35353, derived from the frequency rank of both members and their visual similarity.
info is recorded at frequency rank #2,489, classified as anoun, pronounced /ˈɪnfəʊ/. infra is at rank #32,864, tagged as anadv, pronounced /ˈɪn.fɹə/.
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 35353, this pair ranks #312,715 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of info vs infra
Shared letters: fin. Private to "info": o. Private to "infra": ar.
"info" · 4 letters · shape VCCV · "infra" · 5 letters · shape VCCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "info" for "infra" ever safe?
Which is more common, "info" or "infra"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "info" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "infra" - compare definitions side by side with the headword page. Word entry
- This pair ranks #312,715 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "info" and "infra" also get mixed up with nearby pairs, the highest-scored neighbour is "infra vs inna". 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 #312,715 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.