takes genitive case の, adjectival noun or quasi-adjective, noun

  1. fictitious, imaginary, fanciful, fabricated.

noun or verb acting predominately

  1. aerial, overhead.

Variations

Pronunciation Kanji Kana Is Common
架空 かくう
くう
架空 がくう

Contained Kanji Breakdown

erect, frame, mount
カ か.ける (8th, N1)
add, addition, increase
カ くわ.える (4th, N3)
power, strength, strong
ちから リョク リキ (1st, N4)
mouth
くち コウ ク (1st, N4)
tree, wood
き こ- モク (1st, N5)
empty, sky, void
そら クウ から (1st, N4)
hole, aperture, slit
あな ケツ けな (6th, N1)
shaped crown, katakana u radical (no. 40)
ベン メン (Kentei 1)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)
wa-shaped crown radical (no. 14)
ベキ (Kentei 1)
eight, eight radical (no. 12)
ハチ はっ や (1st, N5)
craft, construction, katakana e radical (no. 48)
ク コウ もく (2nd, N4)