The Open Dictionary

aurora

noun

UK/ɔːˈrɔː.rə/
US/ɔːˈrɔːr.ə/

Definitions of aurora noun

  1. Countableenvironment

    A natural display of colored light in the sky, typically observed in the polar regions, near the Arctic or Antarctic.

    • I witnessed an unforgettable aurora during the night in Alaska.

    • Scientists are studying the causes of auroras.

    • The beauty of the aurora attracts tourists from all over the world.