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