<p><strong>Noun:</strong></p><ul><li>a long pile or heap; mass: a bank of earth; a bank of clouds.</li><li>Synonyms: dike, ridge, mound, embankment.</li><li>a slope or acclivity.</li><li>Physical Geography: the slope immediately bordering a stream course along which the water normally runs.</li><li>a broad elevation of the seafloor around which the water is relatively shallow but is not a hazard to surface navigation.</li><li>Coal Mining: the surface around the mouth of a shaft. Also called cant, superelevation.</li><li>the inclination of the bed of a banked road or railroad.</li><li>Aeronautics: the lateral inclination of an aircraft, especially during a turn.</li><li>Billiards, Pool: the cushion of the table.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to border with or like a bank; embank: banking the river with sandbags at flood stage.</li><li>to form into a bank or heap (usually followed by up): to bank up the snow.</li><li>to build (a road or railroad track) with an upward slope from the inner edge to the outer edge at a curve.</li><li>Aeronautics: to tip or incline (an airplane) laterally.</li><li>Billiards, Pool: to drive (a ball) to the cushion.</li><li>to pocket (the object ball) by driving it against the bank.</li><li>to cover (a fire) with ashes or fuel to make it burn long and slowly.</li></ul><p><strong>Verb (used without object):</strong></p><ul><li>to build up in or form banks, as clouds or snow.</li><li>Aeronautics: to tip or incline an airplane laterally.</li><li>Horology: (of a lever or balance) to be halted at either end of its oscillation by striking a pin or the like.</li><li>(of a road or railroad track) to slope upward from the inner edge to the outer edge at a curve.</li></ul>