Tack

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People

François Tack (c. 1650Script error: No such module "Check for unknown parameters".–1686), Dutch East India Company officer
Augustus Vincent Tack (1870–1949), American painter
Anita Tack (born 1951), German politician of the Left Party
Erik Tack (born 1958), Belgian politician
Kerstin Tack (born 1968), German politician of the Social Democratic Party

Tack (sewing) (also baste or pin), quick, temporary stitching intended to be removed
Blu Tack, a reusable putty-like pressure-sensitive adhesive used for attaching paper items to walls
Horse tack, equipment used to allow riding or driving of horses and some other riding animals
Thumbtack or drawing pin, a short nail or pin easily placed and removed by hand
Shoe tack, a type of cut nail, used in upholstery, shoe making and saddle manufacture
Tack weld, a specific short and often temporary type of weld
Upholstery tack or furniture tack, a type of short nail more robust and resistant than the drawing pin.

A tack as a part of the tacking maneuver; in which a sailing boat turns its bow through the wind
Tack (sailing), the lower corner of a sail's leading edge
Tack (square sail), a type of rigging unique to square sails

Hardtack, a hard cracker or biscuit used for food on sea voyages and by soldiers during the American Civil War.
Scottish lease, as held by a tacksman
Tack, another name for stickiness in chemistry
The Tack, a parliamentary maneuver supported by Tackers in 1704
The grand tack hypothesis on the origin of the structure of the Solar System
"TACK", a proposed archaeal taxon, presumably a sister taxon of hypothetical "Asgard" taxon within the "Proteoarchaeota" kingdom; now renamed to Thermoproteati
TACK, a proposed network security standard co-created by Moxie Marlinspike
Any of the four symbols
- right tack $⊢$
- down tack $⊤$
- up tack $⊥$
- left tack $⊣$