slate

A fine-grained metamorphic rock that splits into thin, smooth-surfaced layers.

A piece of this rock cut for use as roofing or surfacing material or as a writing surface.

A writing tablet made of a similar material.

A record of past performance or activity.

A list of the candidates of a political party running for various offices.

A dark or bluish gray to dark bluish or dark purplish gray.

Made of a fine-grained metamorphic rock.

Of the color slate.

To cover (a roof, for example) with slate.