Real Dictionary

barre in American English
a horizontal handrail held onto while doing ballet exercises
noun: a handrail placed at hip height, used by a dancer to maintain balance during practice
noun: a pattern of stripes or bands of color extending across the warp in woven and knitted fabrics

barre in British English
adverb: by using the barré
noun: a rail at hip height used for ballet practice and leg exercises
noun: the act of laying the index finger over some or all of the strings of a guitar, lute, or similar instrument, so that the pitch of each stopped string is simultaneously raised
verb: to execute (chords) in this manner