Noun

a dome-shaped covering made of transparent glass or plastic

Noun

an impracticable and illusory idea

Noun

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

Noun

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

Verb

expel gas from the stomach

Verb

form, produce, or emit bubbles

Verb

cause to form bubbles

Verb

rise in bubbles or as if in bubbles

Verb

flow in an irregular current with a bubbling noise