whin

noun

1. 1

   any of various hard colored rocks (especially rocks consisting of chert or basalt)

2. 2

   small Eurasian shrub having clusters of yellow flowers that yield a dye; common as a weed in Britain and the United States; sometimes grown as an ornamental

3. 3

   very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe