(mast, mäst) noun
1. Naut. A pole or spar of round timber or tubular iron or steel, set upright in a sailing vessel to sustain the yards, sails, etc.
2. The upright pole of a derrick.
3. Any large, upright pole.
—before the mast Occupying the position of, or serving as, a common sailor: from the fact that common sailors were quartered forward of the foremast.
—v.t. To furnish with a mast or masts. [OE mæst]
—mast′less adjective

(mast, mäst) noun
The fruit of the oak, beech, and other trees; acorns, etc. [OE mæst mast, fodder]

Var. of MASTO–.