prolusion /prə-, prō-looˈzhən or -lūˈ/

1. A preliminary performance, activity or display
2. An essay preparatory to a more solid treatise

• paddle steamer
• paddle steamers
• paddle wheel
• paddle wheels
• paddle-wood
• paddle-woods
• paddling
• paddlings
• paddock
• paddocks
• paddock-stool
• paddock-stools
• paddy
• Paddy
• paddy-bird
• paddy-birds
• paddy field
• paddy fields
• Paddyism
• paddymelon
• paddymelons
• Paddys
• Paddy's lantern
• paddy train
• paddy trains