The Collaborative International Dictionary of English v.0.48:

Ding \Ding\ (d[i^]ng), v. t. [imp. & p. p. Dinged, Dang
   (Obs.), or Dung (Obs.); p. pr. & vb. n. Dinging.] [OE.
   dingen, dengen; akin to AS. dencgan to knock, Icel. dengja to
   beat, hammer, Sw. d[aum]nga, G. dengeln.]
   1. To dash; to throw violently. [Obs.]
      [1913 Webster]

            To ding the book a coit's distance from him.
                                                  --Milton.
      [1913 Webster]

   2. To cause to sound or ring.
      [1913 Webster]

   To ding (anything) in one's ears, to impress one by noisy
      repetition, as if by hammering.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dung \Dung\, v. i.
   To void excrement. --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dung \Dung\ (d[u^]ng), n. [AS. dung; akin to G. dung, d["u]nger,
   OHG. tunga, Sw. dynga; cf. Icel. dyngja heap, Dan. dynge,
   MHG. tunc underground dwelling place, orig., covered with
   dung. Cf. Dingy.]
   The excrement of an animal. --Bacon.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dung \Dung\, v. t. [imp. & p. p. Dunged; p. pr. & vb. n.
   Dunging.]
   1. To manure with dung. --Dryden.
      [1913 Webster]

   2. (Calico Print.) To immerse or steep, as calico, in a bath
      of hot water containing cow dung; -- done to remove the
      superfluous mordant.
      [1913 Webster]

WordNet (r) 3.0 (2006):

dung
    n 1: fecal matter of animals [syn: droppings, dung, muck]
    v 1: fertilize or dress with dung; "you must dung the land"
    2: defecate; used of animals

Moby Thesaurus II by Grady Ward, 1.0:

41 Moby Thesaurus words for "dung":
   BM, ammonia, bowel movement, buffalo chips, ca-ca,
   castor-bean meal, commercial fertilizer, compost, coprolite,
   coprolith, cow, cow chips, cow flops, cow pats, crap, defecation,
   dingleberry, dressing, droppings, enrichener, excrement, feces,
   feculence, fertilizer, guano, jakes, manure, movement, muck,
   night soil, nitrate, nitrogen, ordure, organic fertilizer,
   phosphate, sewage, sewerage, shit, stool, superphosphate, turd



Easton's 1897 Bible Dictionary:

Dung
   (1.) Used as manure (Luke 13:8); collected outside the city
   walls (Neh. 2:13). Of sacrifices, burned outside the camp (Ex.
   29:14; Lev. 4:11; 8:17; Num. 19:5). To be "cast out as dung," a
   figurative expression (1 Kings 14:10; 2 Kings 9:37; Jer. 8:2;
   Ps. 18:42), meaning to be rejected as unprofitable.

     (2.) Used as fuel, a substitute for firewood, which was with
   difficulty procured in Syria, Arabia, and Egypt (Ezek. 4:12-15),
   where cows' and camels' dung is used to the present day for this
   purpose.


Bouvier's Law Dictionary, Revised 6th Ed (1856):

DUNG. Manure. Sometimes it is real estate, and at other times personal
property. When collected in a heap, it is personal estate; when spread out
on the land, it becomes incorporated in it, and it is then real estate. Vide
Manure.