Which to use
“debug” is a verb and “drug” is a noun - they look or sound alike but fill different roles in a sentence.
- #34,458
- “debug” frequency rank
- #1,422
- “drug” frequency rank
- 35880
- confusion score
Side-by-Side Comparison
| Feature | debug | drug |
|---|---|---|
| Definition | To search for and eliminate malfunctioning elements or errors in something, especially a computer program or machinery. | A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose. |
Where the eye mixes debug and drug
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between debug and drug
These two trip readers on the page rather than in the ear: debug is /diːˈbʌɡ/ while drug is /dɹʌɡ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 35880, derived from the frequency rank of both members and their visual similarity.
debug is recorded at frequency rank #34,458, classified as averb, pronounced /diːˈbʌɡ/. drug is at rank #1,422, tagged as anoun, pronounced /dɹʌɡ/.
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 35880, this pair ranks #308,128 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of debug vs drug
Shared letters: dgu. Private to "debug": be. Private to "drug": r.
"debug" · 5 letters · shape CVCVC · "drug" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Do "debug" and "drug" mean the same thing in a sentence?
Frequency check: "debug" vs "drug" - which ranks higher?
Useful next steps
Eye-level mix-up between "debug" and "drug" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "debug" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "drug" - compare definitions side by side with the headword page. Word entry
- This pair ranks #308,128 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "debug" and "drug" also get mixed up with nearby pairs, the highest-scored neighbour is "Debby vs debug". 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 #308,128 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.