an aggregation of bubbles, as on an agitated liquid or at the mouth of a hard-driven horse; foam; spume.

a foam of saliva or fluid resulting from disease.

something unsubstantial, trivial, or evanescent

The play was a charming bit of froth.

to cover with froth

giant waves frothing the sand.

to cause to foam

to froth egg whites with a whisk.

to emit like froth

a demagogue frothing his hate.

to give out froth; foam

frothing at the mouth.

noun

barm , ebullition , effervescence , fizz , foam , head , scud , scum , spindrift , spray , spume , suds , yeast , lather , fiddle-faddle , frippery , frivolity , minutia , nonsense , small change , small potatoes , trifle , triviality , surf

verb

bubble , cream , effervesce , fizz , lather , spume , suds , yeast