The Oxford Thesaurus An A-Z Dictionary of Synonyms - bubblen.

1) blister, air pocket, globule, droplet: This painted surface is full of air bubbles. 2) bubbles. froth, foam, suds, lather, spume; effervescence, carbonation, fizz: The cider is full of bubbles. --v. 3) foam, froth, boil, seethe, fizz: A pot of soup was bubbling on the stove.