rvsredWhat's the difference?

Quick tell: r is a character, red is a verb, so they fill different roles in a sentence.

Which to use

“r” is a character and “red” is a verb - they look or sound alike but fill different roles in a sentence.

#637
“r” frequency rank
#3,498
“red” frequency rank
4135
confusion score

Side-by-Side Comparison

Feature r red
Definition Dix-huitième lettre et quatorzième consonne de l’alphabet (minuscule). Deuxième personne du singulier du présent de l’impératif à la forme active de reden.

Where the eye mixes r and red

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

1 ch
r
3 ch
red

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: r is \ɛʁ\ while red is \ʁeːt\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “r” sits inside “red”, and the parts of speech differ too (character vs verb), which is usually the fastest check. Our composite confusion score for this pair is 4135, derived from the frequency rank of both members and their visual similarity.

r is recorded at frequency rank #637, classified as acharacter, pronounced \ɛʁ\. red is at rank #3,498, tagged as averb, pronounced \ʁeːt\.

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 4135, this pair ranks #432,360 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of r vs red

Shared letters: r. Private to "r": -. Private to "red": de.

"r" · 1 letters · shape C  ·  "red" · 3 letters · shape CVC

Frequently Asked Questions

Can "r" and "red" be used interchangeably?
No - they are not even the same part of speech. "r" is a character and "red" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "r" or "red"?
"r" is the more common of the two: it sits at frequency rank #637 in our French list, against #3,498 for "red". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list