rã vs rei, What's the Difference?

Which to use

“rã” and “rei” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#28,019
“rã” frequency rank: #794
“rei” frequency rank: 28813
confusion score

Side-by-Side Comparison

Feature	rã	rei
Definition	anfíbio da ordem dos anuros que possui pele lisa; geralmente, da família dos ranídeos	soberano; monarca; czar

Where the eye mixes rã and rei

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. rã runs 2 letters (CV) against rei's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.

2 ch

rã

3 ch

rei

Look-alike desk: rã vs rei

A purely visual mix-up. rã (/ˈχã/) and rei (/ˈRɐj/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 28813, derived from the frequency rank of both members and their visual similarity.

rã is recorded at frequency rank #28,019, classified as anoun, pronounced /ˈχã/. rei is at rank #794, tagged as anoun, pronounced /ˈRɐj/.

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 28813, this pair ranks #39,963 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of rã vs rei

Shared letters: r. Private to "rã": ã. Private to "rei": ei.

"rã" · 2 letters · shape CV · "rei" · 3 letters · shape CVV

Frequently Asked Questions

Can "rã" and "rei" be used interchangeably?

No. They are said differently (/ˈχã/ versus /ˈRɐj/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

Frequency check: "rã" vs "rei" - which ranks higher?

"rei" is the more common of the two: it sits at frequency rank #794 in our Portuguese list, against #28,019 for "rã". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

Full dictionary entry for "rã" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "rei" - compare definitions side by side with the headword page. Word entry
This pair ranks #39,963 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"rã" and "rei" also get mixed up with nearby pairs, the highest-scored neighbour is "rã vs rabi". Nearby pair

Confusion rank #39,963 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.