沫 (mò): foam

The sea waves beat against the reef, splashing up a patch of white foam.

She likes to put a lot of shower gel into the bathtub when taking a bath, stirring up thick foam.

The barista frothed the milk into fine foam, then gently poured it over the coffee.

The beer was poured too quickly, and the foam in the glass overflowed all at once.

When washing dishes, the dish soap produced a lot of foam, which needs to be rinsed off with clean water.