noun
A substance composed of a large collection of bubbles or their solidified remains, especially:
A material formed by trapping pockets of gas in a liquid or solid.
(figuratively, poetic) The sea.
Fury, rage, ire.
(African-American Vernacular, in the plural) Sneakers.
verb
(intransitive) To form or emit foam.
(intransitive) To spew saliva as foam; to foam at the mouth.
(firefighting) To coat or cover with foam.