machvsmuchoWhich spelling fits?

Quick tell: mach is a noun, mucho is an adjective, so they fill different roles in a sentence.

Which to use

“mach” is a noun and “mucho” is an adjective - they look or sound alike but fill different roles in a sentence.

#35,130
“mach” frequency rank
#79
“mucho” frequency rank
35209
confusion score

Side-by-Side Comparison

Feature mach mucho
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. Que abunda o es mayor o excede lo corriente.

Where the eye mixes mach and mucho

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
mach
5 ch
mucho

Look-alike desk: mach vs mucho

These two trip readers on the page rather than in the ear: mach is [ˈmat͡ʃ] while mucho is [ˈmut͡ʃo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 35209, 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]. mucho is at rank #79, tagged as anadj, pronounced [ˈmut͡ʃo].

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 35209, this pair ranks #187,312 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of mach vs mucho

Shared letters: chm. Private to "mach": a. Private to "mucho": ou.

"mach" · 4 letters · shape CVCC  ·  "mucho" · 5 letters · shape CVCCV

Known mistypes of this pair

  • machamch · macch · machh · mahc · mcah · mmach
  • muchomcuho · mmucho · muccho · muchho · mucoh · muhco · umcho

Frequently Asked Questions

Do "mach" and "mucho" mean the same thing in a sentence?
No - they are not even the same part of speech. "mach" is a noun and "mucho" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "mach" or "mucho" show up more?
"mucho" is the more common of the two: it sits at frequency rank #79 in our Spanish list, against #35,130 for "mach". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "mach" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mucho" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #187,312 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "mach" and "mucho" 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 #187,312 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list