Definition

1. Noun:

   • A mass of small, white, or light bubbles formed on the surface of a liquid, especially due to agitation, fermentation, or chemical reaction.
   • Something light, trivial, or insubstantial; empty or frivolous talk or ideas.

2. Verb:

   • To produce or exude a mass of small bubbles; to foam.
   • To become covered with or as if with froth.
   • To be extremely angry or agitated, often visibly so.

Usage and Examples

• Noun:
  • The froth on the cappuccino was perfectly smooth.
  • He dismissed the proposal as mere intellectual froth.
• Verb:
  • The detergent made the water froth as she washed the dishes.
  • The rabid dog began to froth at the mouth.

Advanced Usage

• "to froth at the mouth": To be extremely and visibly angry or agitated. This phrase originates from the literal symptom of certain illnesses, like rabies.
  • The politician was frothing at the mouth during the heated debate.
• "to froth over": To bubble over with excitement, enthusiasm, or anger.
  • Her enthusiasm for the project was frothing over.

Variants and Related Words

• Frothy (adjective): Full of or resembling froth; light and entertaining but lacking substance.
  • A frothy milkshake.
  • A frothy romantic comedy.
• Frothiness (noun): The quality or state of being frothy.

Synonyms

• Foam (n., v.): A mass of small bubbles, often more stable or dense than froth.
• Lather (n., v.): A frothy white mass of bubbles produced by soap or detergent.
• Spume (n., v.): Foam or froth on a liquid, especially the sea (more literary).
• Effervescence (n.): Bubbles in a liquid; liveliness.

Antonyms

• Stillness (n.): Absence of movement or bubbles.
• Substance (n.): Material of solid or serious worth.

Related Phrasal Verbs / Constructions

• Froth up: To agitate a liquid to create froth.
  • Froth up the milk for your latte.

Noun

1. a mass of small bubbles formed in or on a liquid
   • the beer had a thick head of foam

Verb

1. exude or expel foam
   • the angry man was frothing at the mouth
2. make froth or foam and become bubbly
   • The river foamed
3. become bubbly or frothy or foaming
   • The boiling soup was frothing
   • The river was foaming
   • Sparkling water