1. 西部的;向西的
    A westerly point, area, or direction is to the west or towards the west.

    e.g. ...Finisterre, Spain''s most westerly point...
           坐落在西班牙最西端的菲尼斯特雷
    e.g. They set out in a westerly direction along the riverbank.
           他们沿着河岸向西出发了。

2. (风)从西方吹来的
    A westerly wind blows from the west.

    e.g. ...a prevailing westerly wind.
           盛行西风