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1. A short nail with a sharp point and a large head
    
2. The heading or position of a vessel relative to the trim of its sails
    
3. (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
   - sheet, mainsheet, weather sheet, shroud
    
4. (nautical) the act of changing tack
   - tacking
    
5. An approach or course of action, esp. a new one
   "He stopped for a moment, collecting his thoughts, before deciding to try a different tack"
    
6. Gear for a horse
   - stable gear, saddlery

1. Fasten with tacks
   "tack the notice on the board"
    
2. (boat) turn into the wind
   "The sailors decided to tack the boat"; "The boat tacked";
   - wear round
    
3. Create by putting components or members together
   "He tacked together some verses";
   - assemble, piece, put together, set up, tack together
    
4. Sew together loosely, with large stitches
   "tack a hem";
   - baste
    
5. Fix to; attach
   - append, tag on, tack on, hang on
    
6. Reverse (a direction, attitude, or course of action)
   - interchange, switch, alternate, flip, flip-flop

Derived forms: tacked, tacks, tacking

Type of: aim, appurtenance, attach, bearing, change by reversal, change of course, create, fasten, fix, gear, heading, join, line, make, nail, paraphernalia, reverse, run up, sail, secure, sew, sew together, stitch, stitch up, turn

Part of: ship

Encyclopedia: Tack