1. (n.) A hair; hence, the fiber of wool, cotton, and the like; also, the nap when thick or heavy, as of carpeting and velvet.

2. (n.) A covering of hair or fur.

3. (n.) The head of an arrow or spear.

4. (n.) A large stake, or piece of timber, pointed and driven into the earth, as at the bottom of a river, or in a harbor where the ground is soft, for the support of a building, a pier, or other superstructure, or to form a cofferdam, etc.

5. (n.) One of the ordinaries or subordinaries having the form of a wedge, usually placed palewise, with the broadest end uppermost.

6. (v. t.) To drive piles into; to fill with piles; to strengthen with piles.

7. (n.) A mass of things heaped together; a heap; as, a pile of stones; a pile of wood.

8. (n.) A mass formed in layers; as, a pile of shot.

9. (n.) A funeral pile; a pyre.

10. (n.) A large building, or mass of buildings.

11. (n.) Same as Fagot, n., 2.

12. (n.) A vertical series of alternate disks of two dissimilar metals, as copper and zinc, laid up with disks of cloth or paper moistened with acid water between them, for producing a current of electricity; -- commonly called Volta's pile, voltaic pile, or galvanic pile.

13. (n.) The reverse of a coin. See Reverse.

14. (v. t.) To lay or throw into a pile or heap; to heap up; to collect into a mass; to accumulate; to amass; -- often with up; as, to pile up wood.

15. (v. t.) To cover with heaps; or in great abundance; to fill or overfill; to load.

abscess abundance accumulate accumulation agglomeration aggregate aggregation amass amassment angina angina pectoris anthill aortic insufficiency aortic stenosis apoplectic stroke architecture arrhythmia arteriosclerosis assault assemblage assemble assortment atherosclerosis atomic pile atrial fibrillation attack auricular fibrillation back backlog bag bags baluster balustrade banister bank bank up bankroll barrel base batch bed sore beriberi heart bestraddle bestride blade blain bleb blister board boil bomb boodle bottle box bract bracteole bractlet breeder reactor bricks bristle bristles brush bubo budget building bulla bundle bunion burden can canker canker sore capillament carbuncle cardiac arrest cardiac insufficiency cardiac shock cardiac stenosis cardiac thrombosis carditis caryatid chain reactor chain-reacting pile chancre chancroid charge chilblain choke cilium climb on coat cock cold sore collect collection colonnade column commissariat commissary concentration congenital heart disease congeries conglomeration considerable construct construction cor biloculare cor juvenum cor triatriatum cornucopia coronary coronary insufficiency coronary thrombosis cotyledon crate crowd in cumulate cumulation dado deal deposit diastolic hypertension die down drift dump dune edifice eiderdown embankment encased heart endocarditis enter erection eschar establishment exaggerate exit extrasystole fabric fast pile fatty heart feel felon fester festering fever blister fibroid heart fill finish fistula flag flask-shaped heart fleece floral leaf floss flue fluff foliole footstalk fortune freight frond frosted heart fur furnace furuncle furunculus fuzz gathering get in get into get on glomeration glume go aboard go on board gobs good deal good sum grain granular texture great deal gumboil hair hairy heart haycock haymow hayrick haystack heap heap up heaps heaps of gold heart attack heart block heart condition heart disease heart failure hemorrhoids heterogeneous reactor high blood pressure hill hoard holdings homogeneous reactor hop in horsehair house hypertension hypertensive heart disease intermediate pile inventory involucre involucrum ischemic heart disease jack jam in jumble jump in jump on kibe knub lade lamina larder large sum lashings lattice leaf leaflet leave leg lemma lesion ligule lint load loads loot lot lots lump mane mass material materials materiel mess millions mint mint of money mitral insufficiency mitral stenosis