Which to use
“infect” and “invent” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #18,109
- “infect” frequency rank
- #13,544
- “invent” frequency rank
- 31653
- confusion score
Side-by-Side Comparison
| Feature | infect | invent |
|---|---|---|
| Definition | To bring (the body or part of it) into contact with a substance that causes illness (a pathogen), so that the pathogen begins to act on the body; (of a pathogen) to come into contact with (a body or body part) and begin to act on it. | To design a new process or mechanism. |
Where the eye mixes infect and invent
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. infect and invent follow the identical consonant-vowel pattern (VCCVCC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses infect with invent
A purely visual mix-up. infect (/ɪnˈfɛkt/) and invent (/ɪnˈvɛnt/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 31653, derived from the frequency rank of both members and their visual similarity.
infect is recorded at frequency rank #18,109, classified as averb, pronounced /ɪnˈfɛkt/. invent is at rank #13,544, tagged as averb, pronounced /ɪnˈvɛnt/.
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 31653, this pair ranks #344,352 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infect vs invent
Shared letters: eint. Private to "infect": cf. Private to "invent": v.
"infect" · 6 letters · shape VCCVCC · "invent" · 6 letters · shape VCCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "infect" for "invent" ever safe?
In ordinary English text, does "infect" or "invent" show up more?
Useful next steps
Eye-level mix-up between "infect" and "invent" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "infect" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "invent" - compare definitions side by side with the headword page. Word entry
- This pair ranks #344,352 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "infect" and "invent" also get mixed up with nearby pairs, the highest-scored neighbour is "infect vs invert". 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 #344,352 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.