- 1 [countable] = thumbtack
- 2 [countable] a small nail with a sharp point and a flat head, used especially for attaching a carpet to the floor a carpet tack compare nail
- 3 [countable, uncountable] (technology) the direction that a boat with sails takes as it sails at an angle to the wind in order to fill its sails They were sailing on (a)port/starboard tack (= with the wind coming from the left/right side).
- 4 [uncountable, singular] the way in which you deal with a particular situation; the direction of your words or thoughts a complete change of tack It was a brave decision to change tack in the middle of the project. When threats failed, she decided to try/take a different tack.
- 5 [countable] a long loose stitch used for holding pieces of cloth together temporarily, before you sew them finally
- 6 [uncountable] (technology) the equipment that you need for riding a horse, such as a saddle and bridle a tack room (= the room where this equipment is kept) Idioms
(to start to consider) the basic facts or practical details of something
(get down to) brass tacks (informal)jump to other results