foam

Nouns

• (n) a mass of small bubbles formed in or on a liquid
  • the beer had a thick head of foam
  froth,
• (n) a lightweight material in cellular form; made by introducing gas bubbles during manufacture

Verbs

• (v) become bubbly or frothy or foaming
  • The boiling soup was frothing
  • The river was foaming
  • Sparkling water
  effervesce, fizz, form bubbles, froth, sparkle,

Synonyms

Words of close approximity