R

R
R
R r
Usage
Writing system	Latin script
Type	Alphabetic
Language of origin	Latin language
Sound values	[r]; [ɾ]; [ɹ]; [ɻ]; [ɺ]; [ʀ]; [ʁ]; [ɽ]; ; (table); (English variations); /ɑːr/;
In Unicode	U+0052, U+0072
Alphabetical position	18
History
Development	Ρ ρ 𐌓 R r; ; ; ; ; ; ; ;
Time period	from c. 50 AD
Descendants	℟; ℞; ®; Ɍ; ᚱ; 𐍂; Ꭱ;
Sisters	Р; ר; ر; ܪ; ࠓ; 𐎗; 𐡓; ረ; Ռ; ռ; Ր; ր; ર; र;
Other
Associated graphs	r(x); rh;
Writing direction	Left-to-right
	This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters.

R or r is the eighteenth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ar (pronounced /ˈɑːr/), plural ars,^[1] or in Ireland or (/ˈɔːr/).^[2]

The letter ⟨r⟩ is the eighth most common letter in English and the fourth-most common consonant, after ⟨t⟩, ⟨n⟩, and ⟨s⟩.^[3]

^ "R", Oxford English Dictionary 2nd edition (1989); "ar", op. cit
^ Krömerová, Alena. Analysis of contemporary Irish dialects (PDF) (Thesis). Archived from the original (PDF) on September 15, 2017. Retrieved September 15, 2017.
^ "Frequency Table". Math.cornell.edu. Archived from the original on November 2, 2017. Retrieved November 7, 2017.