whin (Noun) — Very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe.
whin (Noun) — 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.
whin (Noun) — Any of various hard coloured rocks (especially rocks consisting of chert or basalt).