Quick definitions from WordNet (furrow)

▸ noun:  a long shallow trench in the ground (especially one made by a plow)
▸ noun:  a slight depression in the smoothness of a surface
▸ verb:  hollow out in the form of a furrow or groove ("Furrow soil")
▸ verb:  cut a furrow into a columns
▸ verb:  make wrinkled or creased ("Furrow one's brow")
▸ name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #14324)

---

▸ Also see furrow