noun
brow
BROW/braʊ/
The upper edge of the face above the eyes.
He rests one finger on his brow just above an eyebrow.

Etymology
Old English bru probably originally meant “eyebrow.” The word extended from the hair above the eye to the underlying ridge and the forehead, especially as a region showing emotion.
In context
Before he had finished the exordium, the perspiration was starting from his brow, and his eyes from his head.
More examples
- Sweat gathered on her brow as she climbed.
- He raised one brow in disbelief.
- The roof appeared over the brow of the hill.
Forms
brow · brows
Similar words
- forehead
- The facial area above the eyes, without the hill-edge extension.