n. - A trench in the earth made by, or as by, a plow.
n. - Any trench, channel, or groove, as in wood or metal; a wrinkle on the face; as, the furrows of age.
n. - To cut a furrow in; to make furrows in; to plow; as, to furrow the ground or sea.
n. - To mark with channels or with wrinkles.