Homonym: shell (Container)
A "shell" is a hard, protective outer covering that many animals, like turtles and snails, use to safeguard their bodies. These shells can be made of various materials, such as calcium carbonate or chitin, and come in different shapes and sizes. They serve as a defense against predators and environmental hazards, allowing the animals to thrive in their habitats.
In the world of technology, a "shell" refers to a user interface that allows people to interact with a computer's operating system. This can be a command-line interface, where users type commands, or a graphical user interface (GUI) that uses visual elements. Both types of shells help users manage files and run programs efficiently.