- reuben lucius goldberg
- reconvict
- resourceless
- roaring
- roaring drunk
- raspberry
- razzle
- rough bristlegrass
- rockcress
- rocked
- red_breasted sapsucker
- reddish yellow
- raw recruit
- rial
- robert merton
- robert lowell
- Rhyacotriton
- repellant
- repellingly
- repellently
- repellent
- representational
- reflected image
- roentgenoscopic
- restorer line
- renin substrate
- rennet — the small quantity of curd used for coagulating milk
- rock wren
- re_ echo
- resourcelessness
- realization
- rim (as of a wheel)
- ring worm
- regional necrosis
- reaping
- rhapsodic
- resentful
- rice pudding
- remus
- round broken earthenware piece
- revise
- revised
- rechauffe
- rememberable
- reinvent
- remembrance day
- remembrance
- remembrance sunday
- reaches ears
- reaching
