Bottom n. 1.The lowest part of anything; the foot; as, the bottom of a tree or well; the bottom of a hill, a lane, or a page. "Or dive into the bottom of the deep."
2.The part of anything which is beneath the contents and supports them, as the part of a chair on which a person sits, the circular base or lower head of a cask or tub, or the plank floor of a ship's hold; the under surface. "Barrels with the bottom knocked out." "No two chairs were alike; such high backs and low backs and leather bottoms and worsted bottoms."
3.That upon which anything rests or is founded, in a literal or a figurative sense; foundation; groundwork.
4.The bed of a body of water, as of a river, lake, sea.
5.The fundament; the buttocks.
7.Low land formed by alluvial deposits along a river; low-lying ground; a dale; a valley. "The bottoms and the high grounds."
8.(Naut.) The part of a ship which is ordinarily under water; hence, the vessel itself; a ship. "My ventures are not in one bottom trusted." "Not to sell the teas, but to return them to London in the same bottoms in which they were shipped."
Full bottom, a hull of such shape as permits carrying a large amount of merchandise.
9.Power of endurance; as, a horse of a good bottom.
10.Dregs or grounds; lees; sediment.
At bottom, At the bottom, at the foundation or basis; in reality. "He was at the bottom a good man."
To be at the bottom of, to be the cause or originator of; to be the source of. (Usually in an opprobrious sense.) "He was at the bottom of many excellent counsels."
To go to the bottom, to sink; esp. to be wrecked.
To touch bottom, to reach the lowest point; to find something on which to rest.
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