From The Collaborative International Dictionary of English v.0.48:
Mast \Mast\ (m[.a]st), n. [AS. maest, fem.; akin to G. mast, and E. meat. See Meat.] The fruit of the oak and beech, or other forest trees; nuts; acorns. [1913 Webster]
Oak mast, and beech, . . . they eat. --Chapman. [1913 Webster]
Swine under an oak filling themselves with the mast. --South. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Mast \Mast\, v. t. [imp. & p. p. Masted; p. pr. & vb. n. Masting.] To furnish with a mast or masts; to put the masts of in position; as, to mast a ship. [1913 Webster] Mastaba
From The Collaborative International Dictionary of English v.0.48:
Mast \Mast\, n. [AS. maest, masc.; akin to D., G., Dan., & Sw. mast, Icel. mastr, and perh. to L. malus.] [1913 Webster] 1. (Naut.) 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. [1913 Webster]
The tallest pine Hewn on Norwegian hills, to be the mast Of some great ammiral. --Milton. [1913 Webster]
Note: The most common general names of masts are foremast, mainmast, and mizzenmast, each of which may be made of separate spars. [1913 Webster]
2. (Mach.) The vertical post of a derrick or crane. [1913 Webster]
3. (Aeronautics) A spar or strut to which tie wires or guys are attached for stiffening purposes. [Webster 1913 Suppl.]
Afore the mast, Before the mast. See under Afore, and Before.
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. [1913 Webster]