- 1[transitive] tack something + adv./prep. to fasten something in place with a tack or tacks synonym nail He tacked a notice on the bulletin board.
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- 2[intransitive] (technology) to change the direction of a sailing boat so that the wind blows onto the sails from the opposite side; to do this several times in order to travel in the direction that the wind is coming from
- 3[transitive] tack something (+ adv./prep.) to fasten pieces of cloth together temporarily with long loose stitches before sewing them finally She tacked the sleeve of the blouse into the armhole. Phrasal Verbstack on
tack
verbNAmE//tæk//
Verb Forms present simple I / you / we / they tack he / she / it tacks
past simple tacked
-ing form tacking
Check pronunciation: tack