reducing
reduction
reductive
redundancy
redundant
reed stop
reed
reeducate
reef
reefer
reek
reeking
reel
reeling
reenact
reentry
reestablish
reeve
refection
refer to
refer
referable
referee
reference book
reference mark
reference
referendum
referent
referential
refill
refine
refined
refinement
refinery
reflect upon
reflect
reflection
reflective
reflector
reflex action
reflex
reflexive
refluent
reflux
reform school
reform
reformation
reformatory
reformed
reformer
refound
refract
refraction
refractor
refractory
refrain
refraining
refresh the memory
refresh
refresher course