Abbreviation of 三千大千世界. In Buddhist cosmology, refers to the vast universe of a billion worlds that a Buddha enlightens. Used in religious or philosophical contexts.
In Buddhism, the three-thousand-fold world is considered the sphere enlightened by one Buddha.
2
noun
the whole wide world; the entire universe
yojijukugo (four-character idiom)
Extended, non-technical use meaning the whole world or the entire universe, often with a poetic or emphatic nuance. Less common than the Buddhist sense.