The crust makes or breaks a pie, which explains why so many of us buy them premade.

The earth's crust would break open, causing huge earthquakes and volcanic eruptions and massive lava flows.

They were forced to slow as the crust broke slightly each time a foot landed.

The crust of the bread broke between her teeth.

A crust of gray ash broke in one place, revealing a red glow beneath.

"But I'm sure-" With that, the crust broke, and a section of it lifted.

The salty crust crunched and broke beneath their' feet.

The crust on the snow beneath her broke.

The crust simply broke, and the lava flowed in all directions.

Where this happens, the crust may actually break, gaping open in long, narrow, slot-like vertical cracks.