Which to use
“infect” and “inject” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #18,109
- “infect” frequency rank
- #16,254
- “inject” frequency rank
- 34363
- confusion score
Side-by-Side Comparison
| Feature | infect | inject |
|---|---|---|
| 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 push or pump (something, especially fluids) into a cavity or passage. |
Where the spellings diverge
Shared letters are muted; the letters that actually set infect and inject apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A purely visual mix-up. infect (/ɪnˈfɛkt/) and inject (/ɪnˈd͡ʒɛkt/) 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 a single letter - f in “infect” becomes j in “inject”. Our composite confusion score for this pair is 34363, 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/. inject is at rank #16,254, tagged as averb, pronounced /ɪnˈd͡ʒɛkt/.
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 34363, this pair ranks #321,497 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of infect vs inject
Shared letters: ceint. Private to "infect": f. Private to "inject": j.
"infect" · 6 letters · shape VCCVCC · "inject" · 6 letters · shape VCCVCC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "infect" and "inject" be used interchangeably?
Which is more common, "infect" or "inject"?
Remembering infect vs inject
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “infect” entry
- Browse more pairs most likely to be confused. Most confusable