foam
n//foʊm//skum, skumgummi, skumma
A substance composed of a large collection of bubbles or their solidified remains, especially:
(firefighting) A collection of small bubbles formed by mixing an extinguishing agent with water, used to cover and extinguish fires.
A collection of small bubbles created by mixing soap with water.
A collection of small bubbles created when the surface of a body of water is moved by tides, wind, etc.
A collection of small bubbles formed from bodily fluids such as saliva or sweat.
A collection of small bubbles on the surface of a liquid that is heated, fermented or carbonated.
(intransitive) To form or emit foam.