Catherine-wheel /kathˈ(ə-)rin-(h)wēl/

1. A rotating firework
2. A rose window (architecture)
3. A wheel set round with teeth (heraldry)
4. A sidewise somersault

• impressions
• impressive
• impressively
• impressiveness
• impressivenesses
• impressment
• impressments
• impressure
• impressures
• imprest
• imprests
• imprest system
• imprimatur
• imprimaturs
• imprimis
• imprint
• imprinted
• imprinting
• imprintings
• imprints
• imprison
• imprisonable
• imprisoned
• imprisoning
• imprisonment