beacon

1. N-COUNT A beacon is a light or a fire, usually on a hill or tower, that acts as a signal or a warning. 烽火; 信號燈

...a huge office tower with aircraft warning beacons on the roof. …一個屋頂有航行警告燈的巨型辦公塔。

2. N-COUNT If someone acts as a beacon to other people, they inspire or encourage them. 指路人

She is a beacon of hope for women navigating the darkest passage of their lives. 她是個指引女性們穿越她們生活最黑暗時光的希望的燈塔。