risi - Savi
- robaria
- robator
- robber
- robbery
- robbery insurance
- robbour
- roberia
- Roberts' Rules of Order
- robin
- robour
- Rochdale store
- rock
- rock and roll
- rock in place
- Rockefeller Foundation
- rodent
- rodeo
- Roentgen ray
- rogare
- rogatio
- rogatio testium
- rogation-week
- rogationes, quaestiones, et positiones debent esse simplices
- rogatory letter
- rogo
- rogue
- rogues' gallery
- roiaume
- roigne
- roll
- rolled-up plea
- roller coaster
- roller skating
- rolling credit
- rolling door
- rolling mill
- rolling stock
- Roman calendar
- Roman Catholic
- Roman Catholic Church