n the heading or position of a vessel relative to the trim of its sails
n a short nail with a sharp point and a large head
n gear for a horse
n (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
n (nautical) the act of changing tack
n sailing a zigzag course
v fasten with tacks
v turn into the wind
v create by putting components or members together
v sew together loosely, with large stitches
v fix to; attach
v reverse (a direction, attitude, or course of action)
n. 大头钉( tack的名词复数 ); 平头钉; 航向; 方法
v. 用平头钉钉( tack的第三人称单数 ); 附加, 增补; 帆船抢风行驶, 用粗线脚缝