That depends on what you mean by things. Here are a few lists of things that I can think of.
Words and expressions that start with r:
Iconic People
Some brands, Companies and Organisations
Some other 'things'
Some things that start with V and end with R are:vaporventilatorvespervictorvigorvinegarvotervouchervoyagervoyeur
raperashrat infestationriotsrisksrobbery
Some Australian things beginning with r are:Rock wallabyRock ratRed-necked wallabyRed-tailed phascogaleRainbow lorikeetRosellaRed kangarooRat-kangaroo (not the same as a kangaroo rat)Ring tailed possumRoyal Exhibition Building, MelbourneRoyal Australian MintRoyal Australian NavyRoyal Bluebell
Rufus rat-kangarooRufus hare-wallaby
Powerful things that start with the letter r:radiationrainstormrecommendationredemptionrefereeregulationsrejectionreligionremarkrespectresponsibilityrestresultsrevengerevoltrevolverrhetoricrhinocerosrifleriotriverrocketRottweilerrumor
Rats is the most obvious. Rabies would be another one.
* rug * rocking chair * reading material
Raita
Rocky Mountains
Rubber cement is sticky. It begins with R.
reading material
· Rashid is a city in Egypt