Synonyms for foam

Noun

1. foam, froth, bubble

usage: a mass of small bubbles formed in or on a liquid

2. foam, material, stuff

usage: a lightweight material in cellular form; made by introducing gas bubbles during manufacture

Verb

1. foam, froth, fizz, effervesce, sparkle, bubble

usage: form bubbles; "The boiling soup was frothing"; "The river was foaming"; "Sparkling water"