What does slab mean?
A slab is a broad, flat, relatively thick piece of a solid material. It commonly describes a section of stone, concrete, wood, or metal, especially one forming part of a floor, wall, roof, or work surface. The word can also refer informally to a large, flat portion of food, such as chocolate, cheese, or meat. In figurative or informal use, "a slab of" may suggest a large, heavy, or unappealing quantity of something. Slab is distinct from words such as "slice," which implies a thinner or more tapered portion, and from "slap," which names a sharp blow with an open hand. The term is useful because it emphasizes a solid object with a broad, flat surface rather than a fragment, sheet, or individual portion.
A broad, flat, relatively thick piece of a solid material, especially stone, concrete, wood, or metal; informally, a large flat portion of food.
"A stone slab forms the base of the sculpture."
The food sense is informal and often implies a large or generous portion.
To cover or furnish with slabs, or to place a broad flat piece of material onto something.
"The masons slabbed the surface with pale limestone."
This use is relatively uncommon and is most natural in construction or specialist contexts.
The plural is formed by adding -s.
"The workers lifted several heavy slabs onto the truck."
From a countertop to a block of chocolate, a slab is anything broad, flat, and substantial enough to make a surface.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of slab
The modern English word descends from Middle English "slabbe," used for a flat piece of stone. Its ultimate origin is uncertain, and it has been linked to Scandinavian and Dutch forms meaning a thin piece, board, or flat surface. The word later became especially common for pieces of stone and concrete, while its informal food sense developed in the 19th and 20th centuries.
How slab is actually used
The word is neutral in technical contexts but can sound informal or colloquial when referring to food, especially a large piece of chocolate. In British English, "slab" is also commonly used for a flat piece of stone or concrete.
Easily confused with slab
A slab is a flat, solid piece of material, whereas a slap is a sharp blow made with an open hand.