Word

そら
sky; the heavens
Word

空、洞
うろ、うつお、うつほ、うつせ
hollow; cavity; hole
Word

きょ
unpreparedness; falsehood; Chinese "Emptiness" constellation (one of the 28 mansions)
Word

虚偽

きょぎ
untrue; falsehood; fiction; deception; vanity
Word

空虚

くうきょ
emptiness; vacancy
Word

虚構

きょこう
fiction; fabrication; concoction; fictitious; fictional; imaginary
Word

虚無

きょむ
nihility; nothingness
Word

虚空

こくう
empty space; empty sky
Word

謙虚

けんきょ
modesty; humility
Word

虚弱

きょじゃく
feebleness; weakness; imbecility