Other definitions refine the meaning a bit more:
Most dolmen constructions were built using stone slabs of big dimensions. Their architecture often includes a corridor of access that can be constructed using stone slabs or dry stones. The burial chamber, with variable shapes (e.g. rectangular, polygonal, oval, circular) can also be preceded by an anteroom. In some dolmens, the entrance has a door cut into one or more vertical stone slabs.
The main applications of the slabs as material of construction are for pavings and in the construction of roofs. They can be employed for other uses, among them:
One system of cooking is cooking "to the slab". Similar to the systems of "to the iron" or "grilled", in the procedure to bake to the slab the foods (e.g. meat, fish, vegetables) are put on a slab heated on a fire with oil, butter or lard and other garnishings.
From prehistoric times there have been examples of graves covered with a stone slab, in its natural state or carved. This use of slabs as tombstone has extended the concept of natural slab to the tombstone variant: flat, thin and polished. One is example is the slab in the tomb of King Pere el Gran of Aragon, which weighs 900 kg.
The tombstones usually have some inscriptions. The information on the stone slab traditionally includes the name of the deceased and his date of birth and death. The inscriptions are generally in the frontal side of the stone slab but also in some cases in the verso and around the edges of the slab, some families request to write an inscription in the unseen part of the stone slab (oriented to the ground). Apart from the name, some slabs also have epitaphs in praise of the deceased or citations of religious texts, such as "Requiescat in pace".
Washing clothes is a basic need in civilised societies and, in general, in all the parts of the world. In primitive periods—before running water, washing machines and detergents—it was necessary to go to wash the clothes to the river bank or in a laundry room.
Clothes were washed manually, by rubbing and sometimes striking them against a hard surface with soap. The aim was to do penetrate the mix of water and soap between the fibres of the fabric to pull-out the dirt. The slabs to wash the clothes were slabs of natural stone chosen to present a fine and relatively flat surface. The small rounded irregularities could help of friction in the washing process.
From the term slab and its derivatives, there are many toponyms among them.
Media related to slabs at Wikimedia Commons