foam vs froth

foam and froth both are nouns.

Word	Noun	Adjective	Verb	Adverb
foam	Yes	No	Yes	No
froth	Yes	No	Yes	No

As nouns, foam and froth are synonyms defined as:

As verbs, foam and froth are synonyms defined as:

Other synonyms of foam include effervesce, fizz, form bubbles, sparkle.

foam (noun)	froth (noun)
a mass of small bubbles formed in or on a liquid	a mass of small bubbles formed in or on a liquid
a lightweight material in cellular form; made by introducing gas bubbles during manufacture

foam (verb)	froth (verb)
become bubbly or frothy or foaming	exude or expel foam
	become bubbly or frothy or foaming
	make froth or foam and become bubbly