R

R, or r - is the eighteenth letter of the modern English alphabet and the ISO basic Latin alphabet. Its name in English is ar (pronounced /ˈɑːr/), plural ars,[1] or in Ireland or /ˈɔːr/.

The letter ⟨r⟩ is the eighth most common letter in English and the fourth-most common consonant (after ⟨t⟩, ⟨n⟩, and ⟨s⟩).

The letter ⟨r⟩ is used to form the ending "-re", which is used in certain words such as centre in some varieties of English spelling, such as British English. Canadian English also uses the "-re" ending, unlike American English, where the ending is usually replaced by "-er" (center). This does not affect pronunciation.