Slang for cannabis

Adhesiveness, a technical measure of the stickiness of glue or ink (measured by an "inkometer")

Horse tack, harness and equipment to allow horse-back riding

Tack, a type of cut nail, used in upholstery, shoe making and saddle manufacture

Hardtack, a hard cracker or biscuit used for food on sea voyages and during the American Civil War

Tacking, a maneuver by which a sailing boat turns its bow through the wind

Tack (sailing), the lower corner of a sail's leading edge

Augustus Vincent Tack (1870-1949), American painter

Thumbtack or drawing pin, a short nail or pin easily placed and removed by hand

Blu-Tack, a reusable putty-like pressure-sensitive adhesive used for attaching paper items to walls

Tack (square sail), a type of rigging unique to square sails

Tack (sewing) (also baste or pin), quick, temporary stitching intended to be removed