bubble

flow in an irregular current with a bubbling noise

expel gas from the stomach

a speculative scheme that depends on unstable factors that the planner cannot control

“a real estate bubble”

a dome-shaped covering made of transparent glass or plastic

a hollow globule of gas (e.g., air or carbon dioxide)

an impracticable and illusory idea

“he didn't want to burst the newcomer's bubble”

cause to form bubbles

“bubble gas through a liquid”

form, produce, or emit bubbles

rise in bubbles or as if in bubbles

“bubble to the surface”