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.

plural of horse-block

(historical) A block on which the body of a condemned criminal was quartered.

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

plural of swage block

plural of chopping block

(nautical) A tackle block having two sheaves, one above the other.

plural of sister block

plural of Yule block