ersatz /erˈzats, ûrˈ or er-zatsˈ/

1. A substitute
2. A supplementary reserve from which waste can be made good (military)

1. Substitute
2. Fake

• rooming houses
• rooming-in
• roommate
• roommates
• room-ridden
• rooms
• room service
• roomsome
• room temperature
• room to swing a cat
• roomy
• roon
• roons
• roop
• rooped
• roopier
• roopiest
• rooping
• roopit
• roops
• roopy
• roos
• roosa
• roosas
• roose