A blacksmithing tool meant to be struck by a hammer

present participle of set aside

A device used to adjust the set of a saw's teeth (the amount each tooth protrudes to the side of the saw to create the kerf).

(mathematical analysis) A subset of a given measurable space which is a member of the σ-algebra of that space.

(mathematical analysis) Any of the members of a Borel σ-algebra.

(carpentry) A punch that drives in a nail so that its head is level with or below the surface.

Alternative form of setup

(mathematics) A set which contains any convex combination of any (finite) subset of its points.

A drum kit

Set deeply below a surface, as on a face. / (figuratively) firmly in place; long-standing