tack2 verb1 [transitiveT always + adverbadv/prepositionprep]FASTEN/DO UP to attach something to a wall, board etc, using a tack 〔用圖釘〕把…釘上tack something to somethingA handwritten note was tacked to the wall. 一張手寫便條釘在牆上。
2. [intransitiveI]TTW to change the course of a sailing ship so that the wind blows against its sails from the opposite direction 〔帆船〕搶風航行 3. [transitiveT]DCDLH to fasten pieces of cloth together with long loose stitches, before sewing them 〔大針腳〕暫縫,粗縫
4 tack something ↔ on phrasal verbphr v ADDto add something new to something that is already complete, especially in a way that looks wrong or spoils the original thing 〔尤指畫蛇添足地〕增補,附加a beautiful old house with a hideous modern extension tacked on at the back 後面加建了一個醜陋的現代建築物的漂亮老房子