cork·board 
(kôrkbôrd′)
(kôrkbôrd′)n.
A construction and insulating sheet material made of compressed and baked granules of cork.
- regiment
- regimental
- regimentally
- regimentals
- regimentation
- Regina
- Reginald
- Reginald Carey
- Regiomontanus
- Regiomontanus
- region
- regional
- regional anesthesia
- regional anesthetic
- regionalism
- regionalist
- regionalistic
- regionalization
- regionalize
- regionally
- regional metamorphism
- register
- registered
- Registered Mail
- registered nurse