Which to use
“deaf” is an adjective and “def” is a noun - they look or sound alike but fill different roles in a sentence.
- #7,214
- “deaf” frequency rank
- #8,138
- “def” frequency rank
- 15352
- confusion score
Side-by-Side Comparison
| Feature | deaf | def |
|---|---|---|
| Definition | Unable (or partially able) to hear. | Abbreviation of definition. |
Same sound, different letters: deaf vs def
Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 3 letters.
Same sound, different spelling - deaf / def
Say them out loud and nothing separates them: deaf and def carry the same recorded pronunciation, /dɛf/. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 15352, derived from the frequency rank of both members and their visual similarity.
deaf is recorded at frequency rank #7,214, classified as anadj, pronounced /dɛf/. def is at rank #8,138, tagged as anoun, pronounced /dɛf/.
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 15352, this pair ranks #464,474 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of deaf vs def
Shared letters: def. Private to "deaf": a. Private to "def": -.
"deaf" · 4 letters · shape CVVC · "def" · 3 letters · shape CVC
Known mistypes of this pair
- deaf ← daef · ddeaf · deaff · defa · edaf
Frequently Asked Questions
Do "deaf" and "def" mean the same thing in a sentence?
Which is more common, "deaf" or "def"?
Useful next steps
Sound matches; spelling doesn't. Use the exits below to lock the right form or check a cousin pair.
- Full dictionary entry for "deaf" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "def" - compare definitions side by side with the headword page. Word entry
- This pair ranks #464,474 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "deaf" and "def" also get mixed up with nearby pairs, the highest-scored neighbour is "def vs dox". 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 #464,474 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.