1. [n]  a long shallow trench in the ground (especially one made by a plow)
2. [n]  a slight depression in the smoothness of a surface; "his face has many lines"; "ironing gets rid of most wrinkles"
3. [v]  hollow out in the form of a furrow or groove; "furrow soil"
4. [v]  cut a furrow into a columns
5. [v]  make wrinkled or creased; "furrow one's brow"

1. \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.
   2. Any trench, channel, or groove, as in wood or metal; a
      wrinkle on the face; as, the furrows of age.
   {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.
   

2. \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.
   2. To mark with channels or with wrinkles.
            Thou canst help time to furrow me with age. --Shak.
            Fair cheeks were furrowed with hot tears. --Byron.
   

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