Definition of "bourse"

A stock exchange.

1. (figuratively) Any place, real or imagined, where the value of a thing is settled.  examples

(philately) A meeting of stamp collectors and/or dealers, where stamps and covers are sold or exchanged.  examples

(botany) The swollen basal part of an inflorescence axis at the onset of fruit development; it bears leaves whose axillary buds differentiate and may grow out as shoots.  examples