- 1(literary) the part of the face above the eyes and below the hair synonym forehead The nurse mopped his fevered brow. Her brow furrowed in concentration.
- 2[usually plural] = eyebrow One dark brow rose in surprise.
- 3[usually singular] the top part of a hill The path disappeared over the brow of the hill. see also highbrow, lowbrow, middlebrow Idioms