Crust

The rigid outer layer of a planet or moon, typically referring to the Earth's outermost solid shell. Also, the hardened outer surface of bread, a pie, or other baked goods, formed during cooking. In a broader sense, 'crust' can describe a superficial or hardened covering of any object, substance, or surface, often providing a protective barrier or a boundary between inner and outer layers. It can metaphorically refer to the superficiality of a person or group, the hard exterior covering of something, or a way of life or existence.

Crust meaning with examples

• The Earth's Crust is composed of various tectonic plates that shift over time. Geologists study the Crust to understand the planet's history and structure. Volcanic eruptions often break through the Earth's Crust, releasing molten rock. The continental Crust is generally thicker than the oceanic crust.
• I always enjoy the crispy Crust on a freshly baked baguette. The golden-brown Crust of the apple pie looked delicious. Be careful not to burn the Crust when grilling the pizza. A good Crust on bread provides a pleasant contrast to the soft interior.
• After the fire, a thick Crust of ash covered everything. A layer of ice formed a Crust on the lake during the winter. The dried paint formed a hard Crust on the palette. The mud had formed a Crust on my boots after the hike.
• Beneath his gruff exterior, he had a softer side, but kept up a tough crust. They were only interested in enjoying themselves, so everyone assumed it was just for a quick crust. Some people choose a lifestyle that is hard and cold, just to put a Crust over the emotional pain. She built a protective Crust around her heart after experiencing a significant loss.