brow

WordReference Random House Learner's Dictionary of American English © 2026

brow /braʊ/   n. [countable]

1. Anatomy the forehead;
   the area or ridge over the eye:
   Her brow was wrinkled as she concentrated on the problem.
   See knit one's brows under knit.
2. the hair growing on the ridge;
   eyebrow.
3. the edge of a steep place:
   the brow of a hill.

WordReference Random House Unabridged Dictionary of American English © 2026

brow  (brou), n. 

1. Anatomy the ridge over the eye.
2. the hair growing on that ridge;
   eyebrow.
3. the forehead:
   He wore his hat low over his brow.
4. a person's countenance or mien.
5. the edge of a steep place:
   She looked down over the brow of the hill.
6. Naval Terms gangplank.

• bef. 1000; Middle English browe, Old English brū; akin to Old Norse brūn, Sanskrit bhrūs

Collins Concise English Dictionary © HarperCollins Publishers::

brow / braʊ/ noun

1. the part of the face from the eyes to the hairline; forehead
2. short for eyebrow
3. the expression of the face; countenance: a troubled brow
4. the jutting top of a hill, etc

Etymology: Old English brū; related to Old Norse brūn eyebrow, Lithuanian bruvis, Greek ophrus, Sanskrit bhrūs