meinvsMoonTell them apart

Quick tell: mein is a pronoun, Moon is a noun, so they fill different roles in a sentence.

Which to use

“mein” is a pronoun and “Moon” is a noun - they look or sound alike but fill different roles in a sentence.

#36,545
“mein” frequency rank
#9,893
“Moon” frequency rank
46438
confusion score

Side-by-Side Comparison

Feature mein Moon
Definition meu, minha, pronome possessivo da primeira pessoa do singular: Lua

Where the eye mixes mein and Moon

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

4 ch
mein
4 ch
Moon

Visual trap between mein and Moon

These two trip readers on the page rather than in the ear: mein is /maɪ̯n/ ouvir^(fonte ?) while Moon is /mu:n/ ouvir^(fonte ?). Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 46438, derived from the frequency rank of both members and their visual similarity.

mein is recorded at frequency rank #36,545, classified as apron, pronounced /maɪ̯n/ ouvir^(fonte ?). Moon is at rank #9,893, tagged as anoun, pronounced /mu:n/ ouvir^(fonte ?).

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 46438, this pair ranks #18,870 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of mein vs Moon

Shared letters: mn. Private to "mein": ei. Private to "Moon": o.

"mein" · 4 letters · shape CVVC  ·  "Moon" · 4 letters · shape CVVC

Known mistypes of this pair

  • meinemin · meinn · meni · mmein
  • Moonmmoon · mon · moonn · omon

Frequently Asked Questions

Is swapping "mein" for "Moon" ever safe?
No - they are not even the same part of speech. "mein" is a pronoun and "Moon" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "mein" or "Moon"?
"Moon" is the more common of the two: it sits at frequency rank #9,893 in our Portuguese list, against #36,545 for "mein". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "mein" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Moon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,870 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "mein" and "Moon" also get mixed up with nearby pairs, the highest-scored neighbour is "mein vs mens". 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 #18,870 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list