Which to use
“infect” is a verb and “insects” is a noun - they look or sound alike but fill different roles in a sentence.
- #18,109
- “infect” frequency rank
- #6,924
- “insects” frequency rank
- 25033
- confusion score
Side-by-Side Comparison
| Feature | infect | insects |
|---|---|---|
| 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. | plural of insect |
Where the eye mixes infect and insects
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. infect runs 6 letters (VCCVCC) against insects's 7 (VCCVCCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses infect with insects
These two trip readers on the page rather than in the ear: infect is /ɪnˈfɛkt/ while insects is /ˈɪnsɛkts/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 25033, 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/. insects is at rank #6,924, tagged as anoun, pronounced /ˈɪnsɛkts/.
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 25033, this pair ranks #397,446 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infect vs insects
Shared letters: ceint. Private to "infect": f. Private to "insects": s.
"infect" · 6 letters · shape VCCVCC · "insects" · 7 letters · shape VCCVCCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "infect" for "insects" ever safe?
Frequency check: "infect" vs "insects" - which ranks higher?
After this comparison
Eye-level mix-up between "infect" and "insects" 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 "insects" - compare definitions side by side with the headword page. Word entry
- This pair ranks #397,446 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "infect" and "insects" 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 #397,446 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.