I need to free up some space on my computer.

She clumps up her hair before putting it in a bun.

There were many build-ups in the city after the heavy rain.

There was a build-up of tension before the big game.

She scooped up the sand and put it in a bucket.

The cat scoops up the toy with its paw.

She is scooping up the sand with a shovel.

The children clumped up together to stay warm.

The dough clumps up when you add too much flour.

The students are clumping up in the hallway.