Word

空曹

くうそう
noncommissioned officer of the Japanese Air Self Defense Forces (Defence)
Word

うろ覚え

空覚え、うろ憶え
うろおぼえ、そらおぼえ
vague recollection; faint memory; rote memorization; rote memorisation
Word

空想的

くうそうてき
imaginary
Word

空想科学小説

くうそうかがくしょうせつ
science fiction; sci-fi; fantasy fiction
Word

空想家

くうそうか
visionary
Word

空然

くうぜん
vacant and unthinking; something that should be there is not
Word

空対地

くうたいち
air-to-surface
Word

空前絶後

くうぜんぜつご
(so marvelous or horrible that it may be) the first and probably the last
Word

空説

くうせつ
groundless rumor or story (rumour)
Word

空席待ち

くうせきまち
stand-by (on an airplane)