1. the deepest or lowest part: the bottom of a well; the bottom of the page.
2. the part closest to a reference point: was positioned at the bottom of the key for a rebound.
3. the underside: scraped the bottom of the car on a rock.
4. the supporting part; the base.
5. the far end or part: at the bottom of the bed.
6. the last place, as on a list.
7. the lowest or least favorable position: started at the bottom of the corporate hierarchy.
8. the basic underlying quality; the source: let's get to the bottom of the problem.
9. the solid surface under a body of water.
10. low-lying alluvial land adjacent to a river. often used in the plural. also called bottomland.
11. nautical the part of a ship's hull below the water line.
12. A ship; a boat: "english merchants did much of their overseas trade in foreign bottoms” ( G.M. Trevelyan).
13. the trousers or short pants of pajamas. often used in the plural.
14. informal the buttocks.
15. the seat of a chair.
16. baseball the second or last half of an inning.
17. staying power; stamina. used of a horse.
18. to provide with an underside.
19. to provide with a foundation.
20. to get to the bottom of; fathom.
21. to be or become based or grounded.
22. to rest on or touch the bottom.
23. bottom out to descend to the lowest point possible, after which only a rise may occur: sales of personal computers have bottomed out.
24. at bottom basically.

1. the lowest part from the uppermost part, in either of these senses:
2. character, reliability, staying power, dignity, integrity or sound judgment.
3. a valley, often used in place names.
4. the buttocks or anus.
5. a cargo vessel, a ship.
6. certain parts of a vessel, particularly the cargo hold or the portion of the ship that is always underwater.
7. the second half of an inning, the home team's turn to bat.
8. A submissive in a BDSM relationship or roleplay.
9. A man penetrated or with a preference for being penetrated during homosexual intercourse.
10. A bottom quark.
11. the lowest part of a container.
12. to fall to the lowest point.
13. to establish firmly; to found or justify on or upon something; to set on a firm footing; to set or rest on or upon something which provides support or authority.
14. to wind round something, as in making a ball of thread.
15. to be the submissive in a BDSM relationship or roleplay.
16. to be anally penetrated in gay sex
17. the lowest or last place or position.

1. of or pertaining to the bottom; fundamental; lowest; under.
2. the lowest part of anything; the foot.
3. 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.
4. that upon which anything rests or is founded, in a literal or a figurative sense; foundation; groundwork.
5. the bed of a body of water, as of a river, lake, sea.
6. the fundament; the buttocks.
7. an abyss.
8. low land formed by alluvial deposits along a river; low-lying ground; a dale; a valley.
9. the part of a ship which is ordinarily under water; hence, the vessel itself; a ship.
10. power of endurance.
11. dregs or grounds; lees; sediment.
12. A ball or skein of thread; a cocoon.
13. to rest, as upon an ultimate support; to be based or grounded; -- usually with on or upon.
14. to reach or impinge against the bottom, so as to impede free action, as when the point of a cog strikes the bottom of a space between two other cogs, or a piston the end of a cylinder.
15. to found or build upon; to fix upon as a support; -- followed by on or upon.
16. to furnish with a bottom.
17. to reach or get to the bottom of.
18. to wind round something, as in making a ball of thread.

1. the lowest or deepest part of anything, as distinguished from the top; utmost depth, either literally or figuratively; base; foundation; root: as, the bottom of a hill, a tower, a tree, of a well or other cavity, of a page or a column of figures.
2. the ground under any body of water: as, a rocky bottom; a sandy bottom; to lie on the bottom of the sea.
3. in physical geography, the low land adjacent to a river, especially when the river is large and the level area is of considerable extent. also called bottom-land.
4. in mining, that which is lowest; in pennsylvania coal-mining, the floor, bottom-rock, or stratum on which a coal-seam rests.
5. the lower or hinder extremity of the trunk of an animal; the buttocks; the sitting part of man.
6. the portion of a chair on which one sits; the seat.
7. that part of a ship which is below the wales; hence, the ship itself.
8. the heavy impurities which collect at the bottoms of vessels in which fluids are left to settle: as, “the bottom of beer,”
9. plural the residuum, consisting of impure metal, often found at the bottom of a smelting-furnace when the operation has not been skilfully conducted: chiefly used in reference to copper-smelting.
10. power of endurance; stamina; native strength: as, a horse of good bottom.
11. Milit.: A circular disk with holes to hold the rods in the formation of a gabion.
12. same as bottom-plate.
13. in shoe-making, the sole, heel, and shank of a shoe; all that is below the upper.
14. in railroads, the ballasting about the ties.
15. A platform suspended from a scale, on which the thing to be weighed is placed.— A clue or nucleus on which to wind thread; the thread so wound.
16. the cocoon of a silkworm.
17. in dyeing, a color applied to a fabric with a view of giving a peculiar hue to a dye which is to be subsequently applied.
18. [attrib. use of noun.] situated at the bottom; lowest; undermost; fundamental: as, the bottom stair; the bottom coin of a pile.
19. to furnish with a bottom: as, to bottom a shoe or a chair.
20. to found or build upon; fix upon as a support; base.
21. to fathom; reach or get to the bottom of.
22. to wind round something, as in making a ball of thread.
23. in dyeing, to dye first with a certain color in preparation for another.
24. to rest; be based.
25. to strike against the bottom or end: as, a piston bottoms when it strikes against the end of the cylinder.
26. in botany, to form a bulb or other underground expansion, as an onion.
27. in gold-mining, to get to the bed-rock, or clay, below which it is useless to sink.
28. the lowest landing in a shaft or incline; the lowest working in a mine.
29. the lower portion of a seam or bed, as of coal.
30. in gold-mining, the old river-bed upon which the wash-dirt rests, and upon which the richest alluvial gold is found. sometimes called the gutter.
31. in golf, a backward rotation of the ball which tends to check its motion after it touches the ground.
32. in saddlery, the portion of a martingale which passes between the horse's belly and the belly-band.

1. low-lying alluvial land near a river
2. a depression forming the ground under a body of water
3. the lowest rank
4. the second half of an inning; while the home team is at bat
5. a cargo ship
6. strike the ground, as with a ship's bottom
7. situated at the bottom or lowest position
8. the lowest part of anything
9. the lower side of anything
10. provide with a bottom or a seat
11. come to understand
12. the fleshy part of the human body that you sit on