- (n.) 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.
- (n.) The vertical post of a derrick or crane.
- (n.) The fruit of the oak and beech or other forest trees; nuts; acorns.
- (v.t.) To furnish with a mast or masts; to put the masts of in position; as, to mast a ship.
- (n.) A spar or strut to which tie wires or guys are attached for stiffening purposes.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). mast. Retrieved September 21, 2026, from http://smartdefine.org/mast/definitions/2030917 |
| Chicago | Webster's. 2011. "mast" http://smartdefine.org/mast/definitions/2030917 (accessed September 21, 2026). |
| Harvard | Webster's 2011, mast, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/mast/definitions/2030917>. |
| MLA | Webster's. "mast" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/mast/definitions/2030917> |