- tack
n. 
大頭釘, 粗縫, 行動方針, 食物
以大頭針釘住, 附加
搶風航行, 作文字形移動
1. the heading or position of a vessel relative to the trim of its sails
2. a short nail with a sharp point and a large head
3. gear for a horse
同義詞：stable gear, saddlery
4. (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
同義詞：sheet, mainsheet, weather sheet, shroud
5. (nautical) the act of changing tack
同義詞：tacking
6. sailing a zigzag course
動詞tack:
1. fasten with tacks
2. turn into the wind
同義詞：wear round
3. create by putting components or members together
同義詞：assemble, piece, put together, set up, tack together
4. sew together loosely, with large stitches
同義詞：baste
5. fix to; attach
同義詞：append, tag on, tack on, hang on
6. Reverse (a direction, attitude, or course of action)
同義詞：interchange, switch, alternate, flip, flip-flop
