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

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

proluˈsory /-sə-ri/ adjective

• abying
• abysm
• abysmal
• abysmally
• abysms
• abyss
• abyssal
• abysses
• Abyssinian
• Abyssinian cat
• abyssopelagic
• a/c
• ac
• AC
• Ac
• ACA
• acacia
• acacias
• academe
• academes
• academia
• academias
• academic
• academical
• academicalism