foam (A2)

noun

Pronunciation: /fəʊm/

Definition

A mass of small bubbles on the surface of a liquid, or a light, frothy substance.

Examples

• The beer had a thick head of foam.

• Sea foam washed up on the beach after the storm.

• He wiped the shaving foam from his face.

How to Use foam

foam at the mouth (idiom)

To produce a lot of saliva in the mouth, often due to anger, illness, or extreme emotion. — "The dog began to foam at the mouth, and we rushed it to the vet."

foam up (phrasal verb)

To produce a lot of foam or bubbles. — "Be careful when you add the soap, it might foam up too quickly."

Browse the full Anaversity dictionary