- Part of
- Polish alphabet, English alphabet, Czech alphabet, Esperanto alphabet, Breton alphabet, Slovak alphabet, Turkish alphabet, Azerbaijani Latin alphabet, Italian alphabet, French alphabet, Finnish alphabet, Africa Alphabet
- code
- .-., Romeo, R
- Unicode character
- R, r, R, r, Ⓡ, ⓡ, 🄡, ⒭, 🅡, 🆁, 🅁, 🄬