Which to use
“macron” and “micron” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #30,875
- “macron” frequency rank
- #34,986
- “micron” frequency rank
- 65861
- confusion score
Side-by-Side Comparison
| Feature | macron | micron |
|---|---|---|
| Definition | A short, straight, horizontal diacritical mark (◌̄) placed over a letter, usually to indicate that the pronunciation of a vowel is long. | Synonym of micrometre (“one-millionth of a metre”). |
Where the eye mixes macron and micron
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between macron and micron
A purely visual mix-up. macron (/ˈmækɹɒn/) and micron (/ˈmaɪkɹɒn/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - a in “macron” becomes i in “micron”. Our composite confusion score for this pair is 65861, 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/. micron is at rank #34,986, tagged as anoun, pronounced /ˈmaɪkɹɒn/.
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 65861, this pair ranks #70,711 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of macron vs micron
Shared letters: cmnor. Private to "macron": a. Private to "micron": i.
"macron" · 6 letters · shape CVCCVC · "micron" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "macron" and "micron" mean the same thing in a sentence?
Frequency check: "macron" vs "micron" - which ranks higher?
What to do next
Eye-level mix-up between "macron" and "micron" 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 "micron" - compare definitions side by side with the headword page. Word entry
- This pair ranks #70,711 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "macron" and "micron" also get mixed up with nearby pairs, the highest-scored neighbour is "micron vs miro". 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 #70,711 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.