westerly (Adjective) — Of wind; from the west.
westerly (Adjective) — Moving toward the west. ex. "westerly pioneers"
westerly (Noun) — The winds from the west that occur in the temperate zones of the Earth.
westerly (Adverb) — Toward the west. ex. "we began to steer away westerly"
westerly (Adverb) — From the west. ex. "the wind blew westerly"