In computers, a set of data to be used by a particular program.

An item designed to hold a specific item in a fixed position by virtue of conforming dimensions or attachments; the item which it contains is complete in itself for removal and use outside the container.

The cover of a hardbound book.

Outer layer of a ferrous alloy which has been made harder than the core by case hardening.

A small fissure admitting water into the mine workings.

To line a borehole with steel tubing, such as casing or pipe.