Part of speech: Noun
a mass of small bubbles formed in or on a liquid
Example: the beer had a thick head of foam
Part of speech: Verb
exude or expel foam
Example: the angry man was frothing at the mouth
Part of speech: Verb
make froth or foam and become bubbly
Example: The river foamed
Part of speech: Verb
become bubbly or frothy or foaming
Example: The boiling soup was frothing; The river was foaming; sparkling water