divisionism/diʹvizh(ə)niz(ə)m/ noun

• rookie
• room
• roomed
• roomer
• roomie
• rooming house
• roommate
• room service
• roomy
• roost
• rooster
• root
• root and branch
• root beer
• root canal
• root crop
• root ginger
• rootle
• rootless
• root-mean-square
• root nodule
• root out
• roots music
• rootstock
• root vegetable