The definition of brow means the eyebrow or forehead, or the top edge of a hill or cliff.
(noun)See brow in Webster's New World College Dictionary
noun
Origin: ME broue < OE bru < IE base *bhru-, eyebrow > Sans bhrū-h, ON brūn
See brow in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English
Origin: , from Old English brū; see bhrū- in Indo-European roots
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