Definition of bubble

The noun bubble has 4 senses? (first 1 from tagged texts)

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

(a speculative scheme that depends on unstable factors that the planner cannot control; "his proposal was nothing but a house of cards"; "a real estate bubble")

(an impracticable and illusory idea; "he didn't want to burst the newcomer's bubble")

(a dome-shaped covering made of transparent glass or plastic)

The verb bubble has 5 senses? (first 1 from tagged texts)

(form, produce, or emit bubbles; "The soup was bubbling")

(flow in an irregular current with a bubbling noise; "babbling brooks")

(rise in bubbles or as if in bubbles; "bubble to the surface")

(cause to form bubbles; "bubble gas through a liquid")

(expel gas from the stomach; "In China it is polite to burp at the table")