If someone furrows their brow or forehead or if it furrows, deep folds appear in it because the person is annoyed, unhappy, or confused. My bank manager furrowed his brow, fingered his calculator and finally pronounced `Aha!' Midge's forehead furrowed as she saw that several were drinking Fatigue and stress quickly result in a dull complexion and a furrowed brow. = crease
An opening left in the soil after a plow or disk has opened a shallow channel at the soil surface A shallow channel cut in the soil surface, usually between planted rows, for controlling surface water and soil loss, or for conveying irrigation water
a long shallow trench in the ground (especially one made by a plow) hollow out in the form of a furrow or groove; "furrow soil" cut a furrow into a columns make wrinkled or creased; "furrow one's brow
Any trench, channel, or groove, as in wood or metal; a wrinkle on the face; as, the furrows of age
If you say that someone ploughs a particular furrow or ploughs their own furrow, you mean that their activities or interests are different or isolated from those of other people. The government is more than adept at ploughing its own diplomatic furrow