rajendra, radha, raman
robe, ring
There are no ocean names starting with "R" - there is a sea, the 'Red Sea'.
rover
rain coat
rags
Rayban
raiment
Rihanna.
Rocky Mountain Parnassian Butterfly is a butterfly. It begins with the letter R.
Robe, raincoat, riding boots, Rockport shoes and Rugby shirt are clothes. They begin with the letter r.
Ronald Reagan was an "R" president. Richard Nixon and Rutherford Hayes had R first names.