Which to use
“madder” is a noun and “Mulder” is a name - they look or sound alike but fill different roles in a sentence.
- #47,738
- “madder” frequency rank
- #27,573
- “Mulder” frequency rank
- 75311
- confusion score
Side-by-Side Comparison
| Feature | madder | Mulder |
|---|---|---|
| Definition | A herbaceous plant, Rubia tinctorum, native to Asia, cultivated for a red-purple dye (alizarin) obtained from the root. | A surname from Dutch, equivalent to English Miller. |
Where the eye mixes madder and Mulder
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. madder and Mulder follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between madder and Mulder
These two trip readers on the page rather than in the ear: madder is /ˈmæd.ə(ɹ)/ while Mulder is /ˈmʌl.də(ɹ)/. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 75311, derived from the frequency rank of both members and their visual similarity.
madder is recorded at frequency rank #47,738, classified as anoun, pronounced /ˈmæd.ə(ɹ)/. Mulder is at rank #27,573, tagged as aname, pronounced /ˈmʌl.də(ɹ)/.
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 75311, this pair ranks #33,531 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of madder vs Mulder
Shared letters: demr. Private to "madder": a. Private to "Mulder": lu.
"madder" · 6 letters · shape CVCCVC · "Mulder" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "madder" and "Mulder" mean the same thing in a sentence?
Which is more common, "madder" or "Mulder"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "madder" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Mulder" - compare definitions side by side with the headword page. Word entry
- This pair ranks #33,531 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "madder" and "Mulder" also get mixed up with nearby pairs, the highest-scored neighbour is "madder vs Maurer". 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 #33,531 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.