backrestback‧rest /ˈbækrest/ noun [countable] 
the part of a chair or seat that supports your back
the part of a chair or seat that supports your back- ornamental
- ornamentation
- ornate
- ornately
- ornery
- ornithological
- ornithologist
- ornithology
- Orozco, José
- orphan
- orphanage
- Orpheus and Eurydice
- Orr, Bobby
- Ortega, Daniel
- orthodontic
- orthodontics
- orthodontist
- orthodox
- Orthodox Church
- Orthodox Jew
- orthodoxy
- orthographic
- orthographically
- orthography
- orthopedic