The tough outer part of a loaf of bread. She always cuts the crust off her sandwiches.
The pastry shell of a pie, tart, or similar baked dish. The pie had a golden, flaky crust.
The outermost layer of the Earth, consisting of rock and soil. The Earth's crust is divided into several tectonic plates.
A hard outer layer or covering, especially one formed by dried blood, pus, or other bodily fluids. The wound had developed a protective crust.
A hard layer or deposit that forms on the surface of something. A thick crust of salt had built up on the rocks.
(informal) Insolent boldness or audacity. He had the crust to complain after arriving an hour late.
(informal, chiefly British & Australian) One’s livelihood or means of earning a living. She takes on extra shifts to earn her crust.