Verb
To be in a state of natural ebullition; to bubble and hiss, as fermenting liquors, or any fluid, when some part escapes in a gaseous form.
To exhibit, in lively natural expression, feelings that can not be repressed or concealed; as, to effervesce with joy or merriment.
Source: Webster's dictionaryThe boiling soup was frothing Source: Internet
The river was foaming Source: Internet
sparkling water Source: Internet