bubble (
http://definr.com/bubble)
n 1: a hollow globule of gas (e.g., air or carbon dioxide)
2: 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" [syn: {house of
cards}]
3: an impracticable and illusory idea; "he didn't want to burst
the newcomer's bubble"
4: a dome-shaped covering made of transparent glass or plastic
v 1: form produce, or emit bubbles, as of liquids or gases; "The
soup was bubbling"
2: flow in an irregular current with a bubbling noise, as of
water; "babbling brooks" [syn:
ripple,
babble,
guggle,
burble,
gurgle]
3: expel gas from the stomach; "In China it is polite to burp
at the table" [syn:
burp,
belch,
eruct]