A flake or piece of certain types of stone that tend to cleave into thin layers. • A piece of such stone, usually cut into a rectangular shape, used as a tile for flooring, roofing, etc.; (uncountable) such tiles collectively, or the material from which they are made. • A piece of other material used as a roofing tile. • A generally rectangular piece, originally of certain types of stone and now of other materials, often in a frame, used for writing on with a thin rod of the same or another stone (a slate pencil) or with chalk; a small chalkboard. • Synonym of tablet computer (“a hand-held portable computer in the form of a tablet with a touch screen interface”). • Synonym of clapperboard (“a device consisting of a board on which information about a film being recorded is noted, and a hinged piece which is brought down on the board with a clap at the start and end of each take of the film; it is used to synchronize picture and sound during editing”). • A sequentially numbered session of recording a film. • Information about a film recording which is inserted at the start of the recording, or printed on a videotape label etc. • A record, for example, of money owed. • A range of things; also, a schedule. • A collection of films released during a certain period, either from one studio or from a certain film industry (such as Hollywood) as a whole. • A group or list of candidates for appointment or election to an office; also, a group of candidates or electors with affiliated political views. • A fine-grained homogeneous sedimentary rock composed of clay or volcanic ash which has been metamorphosed so that it cleaves easily into thin layers. • The bluish-grey colour of most slate (etymology 1, noun sense 4).