r

1 plural R's, r's the 18th letter of the English alphabet —see also: three three (2) 2

1 AmE the written abbreviation of Republican Party: Steve Gunderson (R)

2 the written abbreviation of rex or regina the Latin words for king or queen: Elizabeth R

3 the written abbreviation of river, used especially on maps

4 AmE used to show that a film may not be watched by children under 17