Yet, the constant ashfall seemed to be growing even denser.

The murk had grown denser and now shut us in like a box.

As they watched, the crowd in the square grew denser.

As more matter falls into the clump, its center grows denser and hotter.

She felt him watching, sensed the silence grow denser.

The jungle soon grew denser and the houses fewer.

Some cataracts grow larger or denser over time, causing severe vision changes.

It seemed to take the form of a cord which grew ever denser.

The fog grew denser, the air was warm and stifling.

The buildings grew denser and the grass more unkempt.