n. 1 groove, channel, rut, trench, track, ditch, gutter, trough, fosse, fissure, sulcus, sulcation, flute, score, cut, gash, scratch, line; wrinkle, crease, corrugation, crow's-feet, Technical sulcus He can't even plough a straight furrow The furrows in his brow come from worry.
v. 2 groove, channel, flute, score, cut, gash, scratch; plough, harrow This rock was furrowed by glacial action 3 wrinkle, crease, corrugate, knit, pucker, crinkle A frown furrowed his forehead