Which to use
“deem” is a verb and “def” is a noun - they look or sound alike but fill different roles in a sentence.
- #18,536
- “deem” frequency rank
- #8,138
- “def” frequency rank
- 26674
- confusion score
Side-by-Side Comparison
| Feature | deem | def |
|---|---|---|
| Definition | To hold in belief or estimation; to adjudge as a conclusion; to regard as being; to evaluate according to one's beliefs; to account. | Abbreviation of definition. |
Where the eye mixes deem and def
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: deem is /diːm/ while def is /dɛf/. 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 26674, derived from the frequency rank of both members and their visual similarity.
deem is recorded at frequency rank #18,536, classified as averb, pronounced /diːm/. 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 26674, this pair ranks #384,933 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of deem vs def
Shared letters: de. Private to "deem": m. Private to "def": f.
"deem" · 4 letters · shape CVVC · "def" · 3 letters · shape CVC
Known mistypes of this pair
- deem ← ddeem · deemm · deme · edem
Frequently Asked Questions
Can "deem" and "def" be used interchangeably?
Which is more common, "deem" or "def"?
What to do next
You've compared "deem" and "def". Here's where to go from here.
- Full dictionary entry for "deem" 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 #384,933 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "deem" and "def" also get mixed up with nearby pairs, the highest-scored neighbour is "deem vs derp". 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
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.