Which to use
“Mach” is a name and “moc” is a noun - they look or sound alike but fill different roles in a sentence.
- #20,990
- “Mach” frequency rank
- #46,632
- “moc” frequency rank
- 67622
- confusion score
Side-by-Side Comparison
| Feature | Mach | moc |
|---|---|---|
| Definition | A surname from Czech. | moccasin (type of shoe) |
Letter map: Mach vs moc
Shared letters muted; letters that set Mach and moc apart highlighted. Shared run: 2.
Part-of-speech tell for Mach / moc
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Mach is aname and mocanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 67622, derived from the frequency rank of both members and their visual similarity.
Mach is recorded at frequency rank #20,990, classified as aname, pronounced /mɑːk/. moc is at rank #46,632, tagged as anoun.
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 67622, this pair ranks #62,508 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of Mach vs moc
Shared letters: cm. Private to "Mach": ah. Private to "moc": o.
"Mach" · 4 letters · shape CVCC · "moc" · 3 letters · shape CVC
Known mistypes of this pair
- Mach ← amch · macch · machh · mahc · mcah · mmach
Frequently Asked Questions
Can "Mach" and "moc" be used interchangeably?
Which is more common, "Mach" or "moc"?
Useful next steps
Done with this confusable. These links stay specific to "Mach" and "moc".
- Full dictionary entry for "Mach" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "moc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #62,508 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Mach" and "moc" also get mixed up with nearby pairs, the highest-scored neighbour is "moc vs Moog". 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 #62,508 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.