Which to use
“mach” and “mass” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #35,130
- “mach” frequency rank
- #15,896
- “mass” frequency rank
- 51026
- confusion score
Side-by-Side Comparison
| Feature | mach | mass |
|---|---|---|
| Definition | Medida de velocidad relativa que se define como el cociente entre la velocidad de un objeto y la velocidad del sonido en el medio en que se mueve dicho objeto. | Masa. |
Where the eye mixes mach and mass
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: mach vs mass
A purely visual mix-up. mach ([ˈmat͡ʃ]) and mass (/mæs/) 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 51026, derived from the frequency rank of both members and their visual similarity.
mach is recorded at frequency rank #35,130, classified as anoun, pronounced [ˈmat͡ʃ]. mass is at rank #15,896, tagged as anoun, pronounced /mæs/.
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 51026, this pair ranks #100,083 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of mach vs mass
Shared letters: am. Private to "mach": ch. Private to "mass": s.
"mach" · 4 letters · shape CVCC · "mass" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "mach" for "mass" ever safe?
Frequency check: "mach" vs "mass" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "mach" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "mass" - compare definitions side by side with the headword page. Word entry
- This pair ranks #100,083 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "mach" and "mass" also get mixed up with nearby pairs, the highest-scored neighbour is "mach vs math". 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 #100,083 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.