| bubble | (noun) a dome-shaped covering made of transparent glass or plastic | - |
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| (noun) an impracticable and illusory idea | - |
| (noun) a speculative scheme that depends on unstable factors that the planner cannot control | Synonyms: house of cards |
| (noun) a hollow globule of gas (e.g., air or carbon dioxide) | - |
| bubblejet | (noun) a kind of ink-jet printer | Synonyms: bubble-jet printer, bubble jet printer |
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| bubbler | (noun) a public fountain to provide a jet of drinking water | Synonyms: drinking fountain, water fountain |
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| (noun) any of various devices in which air or some other gas is bubbled through a liquid | - |
| bubbliness | (noun) the property of giving off bubbles | Synonyms: effervescence, frothiness |
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| bubbly | (noun) a white sparkling wine either produced in Champagne or resembling that produced there | Synonyms: champagne |
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| bubo | (noun) a lymph node that is inflamed and swollen because of plague or gonorrhea or tuberculosis | - |
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