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."
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