noun, verb, piled, pil⋅ing.| 1. | an assemblage of things laid or lying one upon the other: a pile of papers; a pile of bricks. |
| 2. | Informal. a large number, quantity, or amount of anything: a pile of work. |
| 3. | a heap of wood on which a dead body, a living person, or a sacrifice is burned; pyre. |
| 4. | a lofty or large building or group of buildings: the noble pile of Windsor Castle. |
| 5. | Informal. a large accumulation of money: They made a pile on Wall Street. |
| 6. | a bundle of pieces of iron ready to be welded and drawn out into bars; fagot. |
| 7. | reactor (def. 4). |
| 8. | Electricity. voltaic pile. |
| 9. | to lay or dispose in a pile (often fol. by up): to pile up the fallen autumn leaves. |
| 10. | to accumulate or store (often fol. by up): to pile up money; squirrels piling up nuts against the winter. |
| 11. | to cover or load with a pile: He piled the wagon with hay. |
| 12. | to accumulate, as money, debts, evidence, etc. (usually fol. by up). |
| 13. | Informal. to move as a group in a more or less confused, disorderly cluster: to pile off a train. |
| 14. | to gather, accumulate, or rise in a pile or piles (often fol. by up): The snow is piling up on the roofs. |

noun, verb, piled, pil⋅ing.| 1. | a cylindrical or flat member of wood, steel, concrete, etc., often tapered or pointed at the lower end, hammered vertically into soil to form part of a foundation or retaining wall. |
| 2. | Heraldry. an ordinary in the form of a wedge or triangle coming from one edge of the escutcheon, from the chief unless otherwise specified. |
| 3. | Archery. the sharp head or striking end of an arrow, usually of metal and of the form of a wedge or conical nub. |
| 4. | to furnish, strengthen, or support with piles. |
| 5. | to drive piles into. |
| 6. | in pile, Heraldry. (of a number of charges) arranged in the manner of a pile. |

| 1. | hair. |
| 2. | soft, fine hair or down. |
| 3. | wool, fur, or pelage. |
| 4. | a fabric with a surface of upright yarns, cut or looped, as corduroy, Turkish toweling, velvet, and velveteen. |
| 5. | such a surface. |
| 6. | one of the strands in such a surface. |

| Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid). |

| 1. | a person or thing that reacts or undergoes reaction. |
| 2. | Electricity. a device whose primary purpose is to introduce reactance into a circuit. |
| 3. | Immunology, Veterinary Medicine. a patient or animal that reacts positively towards a foreign material. |
| 4. | Also called atomic pile, chain reactor, chain-reacting pile, nuclear reactor, pile. Physics. an apparatus in which a nuclear-fission chain reaction can be initiated, sustained, and controlled, for generating heat or producing useful radiation. |
| 5. | Chemistry. (esp. in industry) a large container, as a vat, for processes in which the substances involved undergo a chemical reaction. |
| an early battery cell, consisting of several metal disks, each made of one of two dissimilar metals, arranged in an alternating series, and separated by pads moistened with an electrolyte. |
pile 1 (pīl) n.
v. tr.
pile up
[Middle English, from Old French, from Latin pīla, pillar.] |
piles (pīlz) pl.n. See hemorrhoid. [Middle English piles, from Medieval Latin pilī, from Latin pila, ball.] |
pile
|
hemorrhoid hem·or·rhoid (hěm'ə-roid')
n.
An itching or painful mass of dilated veins in swollen anal tissue.
or hemorrhoids The pathological condition in which such painful masses occur. Also called piles.
pile (pīl)
n.
A hemorrhoid.
piles (pīlz)
pl.n.
See hemorrhoid.