infectvsinspectWhat's the difference?

Which to use

“infect” and “inspect” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#18,109
“infect” frequency rank
#12,445
“inspect” frequency rank
30554
confusion score

Side-by-Side Comparison

Feature infect inspect
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 examine critically or carefully; especially, to search out problems or determine condition; to scrutinize.

Where the eye mixes infect and inspect

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. infect runs 6 letters (VCCVCC) against inspect's 7 (VCCCVCC) - the length gap alone is often enough to separate them once you know to check it.

6 ch
infect
7 ch
inspect

Visual trap between infect and inspect

A purely visual mix-up. infect (/ɪnˈfɛkt/) and inspect (/ɪnˈspɛkt/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 30554, 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/. inspect is at rank #12,445, tagged as averb, pronounced /ɪnˈspɛkt/.

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 30554, this pair ranks #353,603 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of infect vs inspect

Shared letters: ceint. Private to "infect": f. Private to "inspect": ps.

"infect" · 6 letters · shape VCCVCC  ·  "inspect" · 7 letters · shape VCCCVCC

Known mistypes of this pair

  • infect ← ifnect · inefct · infcet · infecct · infectt · infetc · inffect · innfect
  • inspect ← innspect · inpsect · insepct · inspcet · inspecct · inspectt · inspetc · insppect

Frequently Asked Questions

Do "infect" and "inspect" mean the same thing in a sentence?
No. They are said differently (/ɪnˈfɛkt/ versus /ɪnˈspɛkt/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "infect" or "inspect" show up more?
"inspect" is the more common of the two: it sits at frequency rank #12,445 in our English list, against #18,109 for "infect". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "infect" and "inspect" 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 "inspect" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #353,603 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "infect" and "inspect" 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 #353,603 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list