When the fog densen, visibility on the road dropped to almost nothing.

After the storm, the fog densened, making it hard to see the shoreline.

When the artist layers the glaze, the paint densens and the color deepens.

The crew is densening the used compost to reduce its volume.

The densening fog made it difficult to navigate the harbor at dusk.

The densening of the fog made driving through the mountain pass particularly perilous.

His denseness about the simplest instructions frustrated the whole team.

The densenesses of the fog along the coastline varied dramatically from dawn to noon.