tack

• 多义词：指尖端锋利、钉帽较大的短钉（图钉、大头钉）；也指帆船相对于风向的航向或帆脚索调整索；还可指马具。

A noun with multiple meanings: a short nail with a sharp point and a large head; the heading or position of a vessel relative to the trim of its sails; gear for a horse; or a line that regulates the angle of a sail.

1. Nautical headingB2formal

   The direction a ship is sailing relative to the wind, determined by how its sails are trimmed.

   航向

   • The captain ordered a change of tack to catch the wind.
   • The ship sailed on a starboard tack.
   • They adjusted the tack to sail more efficiently.

   同义词bearingcourseheading

2. Short nailB1formal

   A small, sharp nail with a broad head, used for fastening things like carpet or upholstery.

   平头钉

   • He hammered a tack into the wall to hang the picture.
   • The carpet was secured with tacks along the edge.
   • She used a tack to fix the loose corner of the fabric.

   同义词bradtintack

3. Horse riding gearB2formalsport

   Equipment used for riding a horse, including the saddle, bridle, and other accessories.

   马具

   • She cleaned her tack after the long ride.
   • The stable has a room for storing all the tack.
   • He bought new tack for his horse.

   同义词harnesssaddlery

4. Nautical lineC1formal

   A rope or chain used to control the angle of a sail relative to the wind.

   帆脚索

   • The sailor pulled the tack to adjust the sail.
   • The tack line snapped under the strain.
   • He secured the tack to the cleat.

   同义词sheet

5. Change of directionB2formal

   The act of turning a ship so that the wind comes from the other side of the sails.

   换舷

   • The crew performed a tack to change course.
   • A well-executed tack can save time.
   • They practiced the tack maneuver repeatedly.

   同义词tacking

6. Zigzag sailingB2formal

   Sailing in a zigzag pattern, typically to make progress against the wind.

   抢风航行

   • The boat sailed a series of tacks to reach the harbor.
   • Tacking is essential when sailing upwind.
   • They spent the afternoon tacking across the bay.

   同义词beatboardleg

   反义词run

• 动词，指用图钉或大头针等把小物件钉住或固定，也指帆船时改变航向或调整行动方向。

A verb used to indicate the act of fastening something with a small nail or pin, or changing direction in sailing or in a course of action.

1. Fasten with tacksB1formal

   To attach or secure something using small, sharp nails or pins.

   用图钉固定

   • She tacked the poster to the bulletin board.
   • He tacked the carpet down to prevent it from slipping.
   • The carpenter tacked the fabric onto the frame.

   同义词affixattachfastenpinsecure

2. Turn into the windB2formal

   To change a sailing vessel's direction so that the bow points into the wind, often to change course.

   迎风转向

   • The captain ordered the crew to tack to avoid the storm.
   • They tacked the boat sharply to catch the wind.
   • The sailor tacked repeatedly to navigate the narrow channel.

   同义词beatchange coursecome aboutgo about

3. Create by assembling componentsB2formal

   To construct or build something by putting parts or members together.

   组装

   • The team tacked together a prototype from spare parts.
   • She tacked a simple shelf using wood and nails.
   • They tacked a makeshift shelter from branches and leaves.

   同义词assemblepieceput togetherset uptack together

4. Sew loosely with large stitchesB2formal

   To join pieces of fabric temporarily using long, loose stitches.

   粗缝

   • She tacked the hem before sewing it permanently.
   • The tailor tacked the sleeves to check the fit.
   • He tacked the patch onto the torn jeans.

   同义词baste

5. Fix to; attachB1formal

   To attach or add something to another object or surface.

   固定；附加

   • He tacked a note to the door with a pin.
   • She tacked the ribbon onto the gift box.
   • The artist tacked the canvas to the wall.

   同义词affixattachfastenfixpinsecurestaple

   反义词detachremove

6. Reverse direction or approachB2formal

   To change one's course of action, attitude, or strategy.

   改变方向

   • The politician tacked to a more moderate stance after the backlash.
   • The company tacked its marketing strategy to appeal to younger audiences.
   • He tacked his approach to the problem after the initial failure.

   同义词alterchange coursepivotreorientshiftswitchturn aroundveerzigzag

   反义词continuepersistremainstay

短语动词变体tack on