真空

Noun

 * 1)  vacuum
 * 2)  any phenomenon without material existence
 * 1)  any phenomenon without material existence

Verb

 * 1)  to not wear underwear (partially or fully)

Etymology
From, in turn from.

First attested in the anthology of Sinitic poetry written by Japanese authors, compiled in 751.

The modern sense of is first attested in 1876.

Adjective

 * 1)  vacant, empty

Usage notes
Monolingual dictionaries do not include any adjective sense,  suggesting that this usage may be a recent development that is not yet considered standard.

Noun

 * 1)   vacuum: a region of space that contains no matter, a void
 * 2)   a blank, an empty slate
 * 3)   sunyata: void, emptiness, non-existence; also, in the, enlightenment, nirvana
 * 1)   sunyata: void, emptiness, non-existence; also, in the, enlightenment, nirvana
 * 1)   sunyata: void, emptiness, non-existence; also, in the, enlightenment, nirvana