<p><strong>Noun</strong></p><ul><li>An upright shaft or structure, of stone, brick, or other material, relatively slender in proportion to its height, and of any shape in section, used as a building support, or standing alone, as for a monument.</li><li>A natural formation resembling such a construction.</li><li>Any upright, supporting part; post.</li><li>A person who is a chief supporter of a society, state, institution, etc.</li><li>A basis or support.</li><li>A core tenet, belief, or religious act, especially in Islam.</li><li>Horology: Any of several short parts for spacing and keeping in the proper relative positions two plates holding the bearings of a watch or clock movement.</li><li>Mining: An isolated mass of rock or ore in a mine, usually serving as a roof support in early operations and later removed, wholly or in part.</li><li>Nautical: Mast.</li></ul><p><strong>Verb</strong></p><ul><li>To furnish or support with pillars.</li></ul>