R : R, the eighteenth letter of the English alphabet, is a vocal consonant. It is sometimes called a semivowel, and a liquid. See Guide to Pronunciation, // 178, 179, and 250-254.

Example:
What R the diffeRent types of quick high pRofit investment in the inteRnet available?

Taxonomy
Statistical Computing, R Project, download, CRAN, user conference, free software, software environment, Foundation, Getting Started, UNIX platforms, MacOS, how to, software, license terms, send an email, October 26, 08-24, source code.

Defination from the web:
R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS. Site includes downloads, manuals, FAQs, and more.