Mast /(mȧst)/

Mast

n.
  1. The fruit of the oak and beech, or other forest trees; nuts; acorns.
    Oak mast, and beech, . . . they eat.
    Swine under an oak filling themselves with the mast.

Mast

n.
  1. A pole, or long, strong, round piece of timber, or spar, set upright in a boat or vessel, to sustain the sails, yards, rigging, etc. A mast may also consist of several pieces of timber united by iron bands, or of a hollow pillar of iron or steel. (Naut.)
    The tallest pine Hewn on Norwegian hills, to be the mast Of some great ammiral.<--sic-->
  2. The vertical post of a derrick or crane. (Mach.)
  3. A spar or strut to which tie wires or guys are attached for stiffening purposes. (Aeronautics)

Phrases & Compounds
Afore the mast
See under Afore, and Before.
Mast coat
See under Coat.
Mast hoop
one of a number of hoops attached to the fore edge of a boom sail, which slip on the mast as the sail is raised or lowered; also, one of the iron hoops used in making a made mast. See Made.

Mast

v. t.

imp. & p. p. Masted; p. pr. & vb. n. Masting

  1. To furnish with a mast or masts; to put the masts of in position; as, to mast a ship.