red vs rue, What's the Difference?

Which to use

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

#3,284
“red” frequency rank: #15,200
“rue” frequency rank: 18484
confusion score

Side-by-Side Comparison

Feature	red	rue
Definition	vermelho, encarnado	rua:

Where the eye mixes red and rue

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

3 ch

red

3 ch

rue

Why the eye confuses red with rue

These two trip readers on the page rather than in the ear: red is /red/ while rue is /ʁy/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 18484, derived from the frequency rank of both members and their visual similarity.

red is recorded at frequency rank #3,284, classified as anadj, pronounced /red/. rue is at rank #15,200, tagged as anoun, pronounced /ʁy/.

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 18484, this pair ranks #52,493 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of red vs rue

Shared letters: er. Private to "red": d. Private to "rue": u.

"red" · 3 letters · shape CVC · "rue" · 3 letters · shape CVV

Frequently Asked Questions

Can "red" and "rue" be used interchangeably?

No - they are not even the same part of speech. "red" is an adjective and "rue" a noun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "red" or "rue" show up more?

"red" is the more common of the two: it sits at frequency rank #3,284 in our Portuguese list, against #15,200 for "rue". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

Full dictionary entry for "red" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "rue" - compare definitions side by side with the headword page. Word entry
This pair ranks #52,493 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"red" and "rue" also get mixed up with nearby pairs, the highest-scored neighbour is "rue vs rust". Nearby pair

Confusion rank #52,493 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.