Dictionary Definition :
Definition[1]
:
The nine lower of the ten worlds, the highest or tenth being the Buddha-world; the nine are always subject to illusion, confused by the senses.
Source
:
A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous
Definition[2]
:
在十法界中除去佛界,就是九世間,因為這九界都是迷的境界,所以叫做世間。
Source
:
陳義孝編, 竺摩法師鑑定, 《佛學常見辭彙》
Definition[3]
:
(名數)十界之中,除去佛界他之九界也。此九界皆為迷妄之境,故名為世間。【參見: 十界】
Source
:
丁福保《佛學大辭典》