Which to use
“checked” is an adjective and “checkup” is a noun - they look or sound alike but fill different roles in a sentence.
- #2,779
- “checked” frequency rank
- #33,563
- “checkup” frequency rank
- 36342
- confusion score
Side-by-Side Comparison
| Feature | checked | checkup |
|---|---|---|
| Definition | Marked with a check mark. | A routine visit to the doctor, dentist, or the like. |
Where the eye mixes checked and checkup
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Why the eye confuses checked with checkup
These two trip readers on the page rather than in the ear: checked is /t͡ʃɛkt/ while checkup is /ˈt͡ʃɛkʌp/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 36342, derived from the frequency rank of both members and their visual similarity.
checked is recorded at frequency rank #2,779, classified as anadj, pronounced /t͡ʃɛkt/. checkup is at rank #33,563, tagged as anoun, pronounced /ˈt͡ʃɛkʌp/.
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 36342, this pair ranks #303,973 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of checked vs checkup
Shared letters: cehk. Private to "checked": d. Private to "checkup": pu.
"checked" · 7 letters · shape CCVCCVC · "checkup" · 7 letters · shape CCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "checked" and "checkup" mean the same thing in a sentence?
Which is more common, "checked" or "checkup"?
After this comparison
Eye-level mix-up between "checked" and "checkup" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "checked" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "checkup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #303,973 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "checked" and "checkup" also get mixed up with nearby pairs, the highest-scored neighbour is "checker vs checkup". 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 #303,973 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.