r's vs RC, What's the Difference?

Which to use

“r's” is a noun and “RC” is an adjective - they look or sound alike but fill different roles in a sentence.

#40,861
“r's” frequency rank: #12,128
“RC” frequency rank: 52989
confusion score

Side-by-Side Comparison

Feature	r's	RC
Definition	plural of r	Initialism of radio-controlled.

Letter map: r's vs RC

Shared letters muted; letters that set r's and RC apart highlighted. Shared run: 1.

3 ch

r's

2 ch

Role in the sentence - r's and RC

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: r's is anoun and RCanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 52989, derived from the frequency rank of both members and their visual similarity.

r's is recorded at frequency rank #40,861, classified as anoun. RC is at rank #12,128, tagged as anadj.

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 52989, this pair ranks #152,568 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of r's vs RC

Shared letters: r. Private to "r's": s. Private to "RC": c.

"r's" · 2 letters · shape CC · "RC" · 2 letters · shape CC

Frequently Asked Questions

Can "r's" and "RC" be used interchangeably?

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

In ordinary English text, does "r's" or "RC" show up more?

"RC" is the more common of the two: it sits at frequency rank #12,128 in our English list, against #40,861 for "r's". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "r's" vs "RC" is on the table, pick a follow-up below.

Full dictionary entry for "r's" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "RC" - compare definitions side by side with the headword page. Word entry
This pair ranks #152,568 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"r's" and "RC" also get mixed up with nearby pairs, the highest-scored neighbour is "r's vs Rua". Nearby pair

Confusion rank #152,568 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.