infectionvsinspectionTell them apart

Which to use

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

#4,093
“infection” frequency rank
#5,694
“inspection” frequency rank
9787
confusion score

Side-by-Side Comparison

Feature infection inspection
Definition The act or process of infecting. The act of examining something, often closely.

Where the eye mixes infection and inspection

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. infection runs 9 letters (VCCVCCVVC) against inspection's 10 (VCCCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
infection
10 ch
inspection

Look-alike desk: infection vs inspection

A purely visual mix-up. infection (/ɪnˈfɛkʃən/) and inspection (/ɪnˈspɛkʃən/) 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 9787, derived from the frequency rank of both members and their visual similarity.

infection is recorded at frequency rank #4,093, classified as anoun, pronounced /ɪnˈfɛkʃən/. inspection is at rank #5,694, tagged as anoun, pronounced /ɪnˈspɛkʃən/.

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 9787, this pair ranks #495,597 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of infection vs inspection

Shared letters: ceinot. Private to "infection": f. Private to "inspection": ps.

"infection" · 9 letters · shape VCCVCCVVC  ·  "inspection" · 10 letters · shape VCCCVCCVVC

Known mistypes of this pair

  • infectionifnection · inefction · infcetion · infecction · infeciton · infecsion · infectino · infectionn
  • inspectioninnspection · inpsection · insepction · inspcetion · inspecction · inspeciton · inspecsion · inspectino

Frequently Asked Questions

Is swapping "infection" for "inspection" ever safe?
No. They are said differently (/ɪnˈfɛkʃən/ versus /ɪnˈspɛkʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "infection" vs "inspection" - which ranks higher?
"infection" is the more common of the two: it sits at frequency rank #4,093 in our English list, against #5,694 for "inspection". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "infection" and "inspection" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "infection" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inspection" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #495,597 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "infection" and "inspection" also get mixed up with nearby pairs, the highest-scored neighbour is "infarction vs infection". 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 #495,597 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