- tack
- I
[[t]tæk[/t]]n.1) bui a short, sharp-pointed nail, usu. with a broad, flat head2) a course of action, esp. one differing from some preceding or other course:took the wrong tack[/ex]3)a) naut. navig. the heading of a sailing vessel, when sailing close-hauled, with reference to the wind directionb) naut. navig. a course run obliquely against the windc) naut. navig. one of the series of straight runs that make up the zigzag course of a ship proceeding to windward4) navig.a) naut. navig. the lower forward corner of a course or fore-and-aft sailb) navig. naut. a rope for extending this5) one of the movements of a zigzag course on land6) a stitch, esp. a long stitch used in fastening seams, preparatory to a more thorough sewing7) a fastening, esp. of a slight or temporary kind8) bui stickiness, as of nearly dry paint or glue9) the gear used in equipping a horse10) bui to fasten with tacks11) to secure by some slight or temporary fastening12) to join together13) to attach as something supplementary; append (often fol. by on)14)a) naut. navig. to change the course of (a sailing vessel) to the opposite tackb) naut. navig. to navigate (a sailing vessel) by a series of tacks15) to put a saddle, bridle, etc., on (a horse)16)a) naut. navig. to tack a sailing vesselb) naut. navig. (of a sailing vessel) to change course in this way17) to take or follow a zigzag course or route18) to change one's course of action, ideas, etc19) to put a saddle, bridle, etc., on a horse (usu. fol. by up)•Etymology: 1350–1400; ME tak buckle, clasp, nail, akin to MD tacke, tac twig, MHG zacke point, peak tack′er, n. IItack[[t]tæk[/t]] n.food; fare•Etymology: 1740–50; orig. uncert.
From formal English to slang. 2014.