A foam finger bobbed above the crowd as the team scored the winning goal.

At the game, she waved a bright red foam hand to cheer on her team.

We sealed the attic gaps with spray foam, a chemical product made by mixing isocyanate and polyol resin that reacts and expands up to 30–60 times its liquid volume after being sprayed in place.

I mounted the presentation graphics onto a foam board for a clean, lightweight display.

Before the cold season, the crew installed spray foams in the attic to improve insulation.

The chemist studied the vanishing foams under a microscope, trying to understand why they collapsed so quickly.

The magician reached into the air and produced a cloud of vanishing foam that dissolved before anyone could touch it.

After testing several samples, he decided that the most effective shave foams left his skin less irritated.

He squeezed a dollop of shave foam onto the palm of his hand before starting to shave.

At the championship game, fans waved foam fingers and cheered for their team.