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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. 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: tacks, tacked, tacking

Type of: aim, appurtenance, attach, bearing, bring together, 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