1. A mass of small bubbles formed in or on a liquid
   "the beer had a thick head of froth";
   - foam

1. Make froth or foam and become bubbly
   "Great cliffs loomed above them, and little streams frothed and dashed in rocky gorges below";
   - spume, suds [N. Amer]
    
2. Become bubbly, frothy or foaming
   "The boiling soup was frothing";
   - foam, fizz, effervesce, sparkle, form bubbles
    
3. Exude or expel foam
   "the angry man was frothing at the mouth"

Derived forms: frothing, frothed, froths

Type of: bubble, create, exudate, exude, make, ooze, ooze out, transude

Encyclopedia: Froth