A style of assembled wood (often sugar maple, teak, or walnut) used as heavy duty chopping blocks, table tops, and cutting boards.

A block of wood (or other material) having slits in which kitchen knives may be stored safely.

A platform or steps used for getting on or off a horse, in modern times, sometimes a vehicle.

A perforated iron block with grooved sides, adapted for use in heading bolts and swaging large objects.

(mathematics) In combinatorial mathematics, a set together with a family of subsets (repeated subsets are allowed at times) whose members are chosen to satisfy some set of properties deemed useful for a particular application.

plural of block design

(Australia, New Zealand) A building at a park, campground, caravan park, or holiday park containing multiple facilities for use by patrons such as toilets, showers, kitchen, laundry, or lockers.

(archaic) Yule log (large log traditionally burned on Christmas Eve)

(cryptography) Any deterministic cipher that operates on fixed-size groups of bits (binary digits), called blocks, with an unvarying transformation specified by a symmetric key.

plural of block cipher