Merriam-Webster's Collegiate Dictionary:
revivalist
revivalistic
revive
reviver
revivification
revivify
reviviscence
reviviscent
revocable
revocation
revokable
revoke
revoker
revolt
revolter
revolting
revoltingly
revolute
revolution
revolutionarily
revolutionariness
revolutionary
revolutionise
revolutionist
revolutionize
revolutionizer
revolvable
revolve
revolver
revolving
revolving door
revolving fund
revolving-door
revue
revulsed
revulsion
revulsive
revved
revving
rewake
rewaken
reward
rewardable
rewarder
rewarding
rewardingly
rewind
reword
rework
rewrite
rewrite man
rewrite rule
rewriter
rex
rex sole
rexroth
reye syndrome
reye's syndrome
reyes, point
reykjav?k
reymont
reynard
reynaud
reynolds
reynolds number
reynoldsburg
reynosa
rez?'?yeh
rez??yeh
reza shah pahlavi
rf
rfd
rflp
rfp
rh
rh factor
rh-negative
rh-positive
rh?ne
rhabdo-
rhabdocoele
rhabdom
rhabdomancer
rhabdomancy
rhabdome
rhabdomere
rhabdomyolysis
rhabdomyosarcoma
rhabdovirus
rhadamanthine
rhadamanthus
rhaetia
rhaetian
rhaetian alps
rhaeto-romance
rhaeto-romanic
rhagae
