Keyword
without a physical form
Info
FrequencyTop 1100-1200
Type
Jōyō 
?
Shinjitai ?
KankenLevel 3
Heisig2148
Old form虛
Readings
きょ
(55%)
こ
(20%)
うつ
(12%)
むな
(10%)
Composed of
tiger's head
runway
Used in kanji (2 in total)
lie
playful
Used in vocabulary (123 in total)
empty; void; vain; fruitless; lifeless
modest; humble
falsehood; untruth; lie; fallacy
Examples (30 in total)
If that happens, it will mean that everything is a futile effort.
No matter how much of that you write, it's just futile.
In other words, buying something like this is just futile.