Which to use
“macron” and “marrow” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #30,875
- “macron” frequency rank
- #14,364
- “marrow” frequency rank
- 45239
- confusion score
Side-by-Side Comparison
| Feature | macron | marrow |
|---|---|---|
| Definition | A short, straight, horizontal diacritical mark (◌̄) placed over a letter, usually to indicate that the pronunciation of a vowel is long. | The substance inside bones which produces blood cells. |
Where the eye mixes macron and marrow
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between macron and marrow
A purely visual mix-up. macron (/ˈmækɹɒn/) and marrow (/ˈmæɹəʊ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 45239, derived from the frequency rank of both members and their visual similarity.
macron is recorded at frequency rank #30,875, classified as anoun, pronounced /ˈmækɹɒn/. marrow is at rank #14,364, tagged as anoun, pronounced /ˈmæɹəʊ/.
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 45239, this pair ranks #223,105 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of macron vs marrow
Shared letters: amor. Private to "macron": cn. Private to "marrow": w.
"macron" · 6 letters · shape CVCCVC · "marrow" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "macron" and "marrow" mean the same thing in a sentence?
In ordinary English text, does "macron" or "marrow" show up more?
What to do next
Eye-level mix-up between "macron" and "marrow" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "macron" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "marrow" - compare definitions side by side with the headword page. Word entry
- This pair ranks #223,105 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "macron" and "marrow" also get mixed up with nearby pairs, the highest-scored neighbour is "macron vs Mahon". 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 #223,105 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.