Foam
Part of speech: verb
Definition: To form or emit foam.
Part of speech: noun
Definition: A substance composed of a large collection of bubbles or their solidified remains.
Example sentence: Every morning, I make myself a cappuccino with a drawing in the foam. I post them to Instagram with the hashtag #christiecappuccino.
Froth
Part of speech: noun
Definition: foamunimportant events or actions; drivel
Part of speech: verb
Definition: To create froth.To bubble.