the world > movement > motion in a certain direction > downward motion > causing to come or go down > [adjective] > brought to the ground or laid low > blown down by the wind (3)
attributive (from sense 1): That is a windfall; blown down by the wind: = compounds 2. Also figurative (from sense 2): Casual, ‘chance’. Also…
With adverbs, as blown-back, blown-down, blown-up. For blown in and out see blow, v.1 19.