hubble-bubble /hubˈl-bubˈl/

1. A bubbling sound
2. Tattle
3. Confusion
4. A crude kind of hookah

• classing
• class interval
• class intervals
• classis
• classism
• classisms
• classist
• classists
• class-leader
• class-leaders
• class legislation
• classless
• classlessness
• class list
• class lists
• classman
• classmate
• classmates
• classmen
• classroom
• classrooms
• class struggle
• class struggles
• class war
• class wars