• 虚空こくう

  empty space, empty sky

• 虚栄きょえい

  vanity, vainglory

• 虚無きょむ

  nihility, nothingness

• 虚構きょこう

  fiction, fabrication, concoction

• 虚弱きょじゃく

  feebleness, weakness, imbecility

• 虚偽きょぎ

  falsehood, untruth, lie, misinformation

• 虚心きょしん

  open-minded, receptive, free from preconceived ideas

• 空虚くうきょ

  emptiness, hollowness, vacancy, void

• 謙虚けんきょ

  modest, humble

• 虚栄心きょえいしん

  vanity

• 虚しいむなしい

  empty, void, vacant

• 虚うろ

  hollow, cavity, hole

• 虚きょ

  unpreparedness

• 虚仮こけ

  folly, fool

• 虚位きょい

  nominal rank

• 虚語きょご

  lie, falsehood

• 虚舟きょしゅう

  empty boat

• 虚血きょけつ

  ischemia, ischaemia

• 虚言きょげん

  falsehood, lie

• 虚伝きょでん

  false rumor, false rumour

• 虚根きょこん

  imaginary root

• 虚業きょぎょう

  risky business

• 虚数きょすう

  imaginary number

• 虚誕きょたん

  exaggerated talk

• 虚妄きょもう

  falsehood, untruth, lie

• 虚説きょせつ

  groundless rumor, groundless rumour

• 虚式きょしき

  imaginary expression

• 虚聞きょぶん

  false rumor, false rumour, false reputation

• 虚礼きょれい

  empty (useless) formalities

• 虚飾きょしょく

  ostentation, show, affectation

• 虚辞きょじ

  falsehood

• 虚静きょせい

  calm and free of ambition or care

• 虚像きょぞう

  virtual image

• 虚部きょぶ

  imaginary part (of complex number)

• 虚実きょじつ

  falsehood and truth, fiction and fact

• 虚字きょじ

  kanji representing verb or adjective

• 虚名きょめい

  false reputation, empty title, empty name

• 虚勢きょせい

  bluff, false show of power, bold front

• 虚鯊うろはぜ

  Glossogobius olivaceus (species of goby)

• 虚学きょがく

  the soft sciences (social science, humanities, etc.)

• 虚報きょほう

  false news, canard, fabricated news story, misinformation, fake news

• 虚脱きょだつ

  lethargy, despondency, mental numbness

• 虚ろうつろ

  cavity, hollow, void

• 虚舟うつろぶね

  unidentified craft said to have washed ashore in Ibaraki Prefecture during the Edo period (sometimes alleged to have been a UFO)

• 太虚たいきょ

  the sky, the heavens

• 腎虚じんきょ

  (male) emaciation due to sexual overindulgence

• 盈虚えいきょ

  waxing and waning (of the moon), phase

• 虚無的きょむてき

  nihilistic

• 虚血性きょけつせい

  ischemic

• 虚無党きょむとう

  the Nihilists