Adjective

1. Of or relating to a broad movement in Western culture, covering a wide variety of alternative spiritual and philosophical ideas, that grew up towards the end of the 20th century.

   At this point in history, the most radical, pervasive, and earth-shaking transformation would occur simply if everybody truly evolved to a mature, rational, and responsible ego, capable of freely participating in the open exchange of mutual self-esteem. There is the "edge of history." There would be a real New Age - Ken Wilber

2. Of or relating to New Age music.

Noun

1. A modern spiritual and religious movement.
2. New Age music.