真しん空くう

し

ん

く

う

Common wordJLPTN2Freq.FrequencyTop 20,000

Meanings

1

noun

vacuum

The ordinary scientific and everyday noun for a space from which air or other matter has been removed; common in compounds such as 真空パック and 真空管.

真しん空くうでは音おとは伝つたわらない。
Sound does not travel in a vacuum.
食しょく品ひんを真しん空くうパックにして保ほ存ぞんする。
Store the food in a vacuum pack.

2

noun

absolute void; complete vacuity

Buddhism

Buddhist technical use referring to an ultimate or absolute voidness; distinct from the physical-science meaning of vacuum.

仏ぶっ教きょう用よう語ごとしての真しん空くうは、物ものがない空くう間かんという意い味みだけではない。
As a Buddhist term, 真空 does not simply mean a space with nothing in it.

Kanji

真true, reality, Buddhist sect
空empty, sky, void

Similar words

空くう
In Buddhist contexts, 空 is the broader term for emptiness or voidness; 真空 is a compound with a more specialized or absolute nuance, while also having the separate everyday meaning of a physical vacuum.
無む
無 means nothingness or nonexistence more generally; 真空 can mean a physical vacuum, and in Buddhism refers to absolute voidness rather than just ordinary absence.
真しん空くう状じょう態たい
真空状態 means 'a vacuum state' or 'state of being in a vacuum' and is often used when emphasizing the condition rather than the substance or concept itself.

Etymology

A Sino-Japanese compound written with 真, 'true' or 'real,' and 空, 'empty' or 'void.' This character meaning fits both the physical sense 'vacuum' and the Buddhist sense 'absolute voidness.'