Which to use
“incur” and “infer” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,620
- “incur” frequency rank
- #23,568
- “infer” frequency rank
- 43188
- confusion score
Side-by-Side Comparison
| Feature | incur | infer |
|---|---|---|
| Definition | To bring upon oneself or expose oneself to, especially something inconvenient, harmful, or onerous; to become liable or subject to. | To introduce (something) as a reasoned conclusion; to conclude by reasoning or deduction, as from premises or evidence. |
Where the eye mixes incur and infer
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. incur and infer follow the identical consonant-vowel pattern (VCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between incur and infer
A purely visual mix-up. incur (/ɪnˈkɜː/) and infer (/ɪnˈfɜː/) 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 43188, derived from the frequency rank of both members and their visual similarity.
incur is recorded at frequency rank #19,620, classified as averb, pronounced /ɪnˈkɜː/. infer is at rank #23,568, tagged as averb, pronounced /ɪnˈfɜː/.
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 43188, this pair ranks #242,406 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of incur vs infer
Shared letters: inr. Private to "incur": cu. Private to "infer": ef.
"incur" · 5 letters · shape VCCVC · "infer" · 5 letters · shape VCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "incur" for "infer" ever safe?
In ordinary English text, does "incur" or "infer" show up more?
What to do next
Eye-level mix-up between "incur" and "infer" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "incur" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "infer" - compare definitions side by side with the headword page. Word entry
- This pair ranks #242,406 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "incur" and "infer" also get mixed up with nearby pairs, the highest-scored neighbour is "infer vs infirm". 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 #242,406 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.