TACK
- to fasten with short, sharp-pointed nails [v -ED, -ING, -S]
- to fasten with tacks (short, sharp-pointed nails) [v TACKED, TACKING, TACKS]
- short nail with a flat head
- ship's direction relative to the direction of the wind
- long temporary stitch
- to fasten with a tack
- to add on
- to change course
- under a misapprehension; in error; astray