mayvsmuyConfusable pair

Quick tell: may is a noun, muy is an adverb, so they fill different roles in a sentence.

Which to use

“may” is a noun and “muy” is an adverb - they look or sound alike but fill different roles in a sentence.

#6,205
“may” frequency rank
#46
“muy” frequency rank
6251
confusion score

Side-by-Side Comparison

Feature may muy
Definition Mayo. Expresa grado intenso, extenso o de abundancia de la característica del adjetivo o adverbio al que precede y es caracterizado como un adverbio de cantidad o modo..

Where the eye mixes may and muy

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
may
3 ch
muy

Visual trap between may and muy

These two trip readers on the page rather than in the ear: may is [ˈmɑj] while muy is [ˈmuj]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - a in “may” becomes u in “muy”, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 6251, derived from the frequency rank of both members and their visual similarity.

may is recorded at frequency rank #6,205, classified as anoun, pronounced [ˈmɑj]. muy is at rank #46, tagged as anadv, pronounced [ˈmuj].

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 6251, this pair ranks #311,324 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of may vs muy

Shared letters: my. Private to "may": a. Private to "muy": u.

"may" · 3 letters · shape CVV  ·  "muy" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "may" for "muy" ever safe?
No - they are not even the same part of speech. "may" is a noun and "muy" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "may" or "muy"?
"muy" is the more common of the two: it sits at frequency rank #46 in our Spanish list, against #6,205 for "may". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "may" and "muy" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "may" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "muy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #311,324 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "may" and "muy" also get mixed up with nearby pairs, the highest-scored neighbour is "may vs mur". Nearby pair

Confusion rank #311,324 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