Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “foam”

foam

noun [U]     /fəʊm/
BUBBLES a mass of small, white bubbles on the surface of a liquidMasses and large amounts of things
PRODUCT a thick substance of small, white bubbles used as a cleaning or beauty product: shaving foam Masses and large amounts of things
FILLING a soft substance used to fill furniture and other objectsPlastics and rubber
(Definition of foam noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “foam” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More