noun (n)

• the season when the leaves fall from the trees

  ketika musim daun gugur dari pokok

  Synonym:
  fall
  

  source: wordnet30
• The third season of the year, or the season between summer and winter, often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November.

  musim ketiga of the year, atau musim antara musim panas dan sejuk, sering disebut" musim gugur. " astronomically, ia bermula di utara sederhana di zon autumnal ekuinoks, tentang 23 september, dan berakhir di musim dingin solstice, pada 23 disember; tapi dalam bahasa populer, musim gugur, di amerika, comprises september, oktober, dan november.

  source: webster1913