The Collaborative International Dictionary of English v.0.48:

Furrow \Fur"row\, n. [OE. forow, forgh, furgh, AS. furh; akin to
   D. voor, OHG. furuh, G. furche, Dan. fure, Sw. f?ra, Icel.
   for drain, L. porca ridge between two furrows.]
   1. A trench in the earth made by, or as by, a plow.
      [1913 Webster]

   2. Any trench, channel, or groove, as in wood or metal; a
      wrinkle on the face; as, the furrows of age.
      [1913 Webster]

   Farrow weed a weed which grows on plowed land. --Shak.

   To draw a straight furrow, to live correctly; not to
      deviate from the right line of duty. --Lowell.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Furrow \Fur"row\, v. t. [imp. & p. p. Furrowed; p. pr. & vb.
   n. Furrowing.] [From Furrow, n.; cf. AS. fyrian.]
   1. To cut a furrow in; to make furrows in; to plow; as, to
      furrow the ground or sea. --Shak.
      [1913 Webster]

   2. To mark with channels or with wrinkles.
      [1913 Webster]

            Thou canst help time to furrow me with age. --Shak.
      [1913 Webster]

            Fair cheeks were furrowed with hot tears. --Byron.
      [1913 Webster]

WordNet (r) 3.0 (2006):

furrow
    n 1: a long shallow trench in the ground (especially one made by
         a plow)
    2: a slight depression in the smoothness of a surface; "his face
       has many lines"; "ironing gets rid of most wrinkles" [syn:
       wrinkle, furrow, crease, crinkle, seam, line]
    v 1: hollow out in the form of a furrow or groove; "furrow soil"
         [syn: furrow, rut, groove]
    2: make wrinkled or creased; "furrow one's brow" [syn: furrow,
       wrinkle, crease]
    3: cut a furrow into a columns [syn: furrow, chamfer,
       chase]

Moby Thesaurus II by Grady Ward, 1.0:

185 Moby Thesaurus words for "furrow":
   abysm, abyss, alveolation, alveolus, arroyo, autolithograph,
   be a printmaker, bore, box canyon, breach, break, burrow, canal,
   canalize, canyon, carve, cavity, chamfer, channel, chap, character,
   chasm, check, chimney, chink, chisel, cleave, cleft, cleuch,
   clough, cocker, cockle, col, corrugate, corrugation, coulee,
   couloir, crack, crankle, cranny, crease, crevasse, crevice,
   cribble, crimp, crimple, crinkle, crosshatch, crumple, cut,
   cut apart, cwm, dado, defile, dell, delve, dent, dig, dig out,
   dike, dimple, dint, ditch, donga, draw, dredge, drill, drive,
   enchase, engrave, excavate, excavation, fault, fissure, flaw,
   flume, flute, fold, fosse, fracture, gap, gape, gash, goffer,
   gorge, gouge, gouge out, grave, groove, grub, gulch, gulf, gully,
   gutter, harrow, hatch, hole, honeycomb, impress, impression,
   imprint, incise, incision, indent, indentation, indention,
   indenture, inscribe, joint, kloof, knit, knot, leak, line,
   lithograph, lower, make prints, mark, mine, moat, notch, nullah,
   open, opening, pass, passage, pit, pleat, plica, plow, pock,
   pockmark, print, pucker, purse, quarry, rabbet, ravine, rent,
   ridge, rifle, rift, rime, rimple, ripple, rive, rivel, ruck,
   ruckle, rumple, rupture, rut, sap, scissure, scoop, scoop out,
   score, scrabble, scrape, scratch, sculpture, seam, shirr, shovel,
   sink, slit, slot, spade, split, stipple, streak, striate,
   sulcation, sulcus, sunken part, tool, track, trench, trough,
   tunnel, valley, void, wadi, wimple, wrinkle



Easton's 1897 Bible Dictionary:

Furrow
   an opening in the ground made by the plough (Ps. 65:10; Hos.
   10:4, 10).