The Full form of R is are, or R stands for are, or the full name of given abbreviation is are.
R (are)
are is known as R.
R all full forms
All the above full forms are related to R. A little information is given about one of these full forms. If you are not satisfied with the information given about 'are (R)', then comment. Or if you know more about 'are (R)', then write.