Keyword
empty air
Info
FrequencyTop 100-200
Type
Kyōiku (1st grade) 
?
KankenLevel 10
Heisig1414
Readings
くう
(52%)
そら
(25%)
(8%)
ぞら
(6%)
から
(4%)
(1%)
Composed of
hole
construction
Mnemonic

If you make a hole during construction it will be filled with empty air.

Used in kanji (5 in total)
refrain
body cavity
boorish
type of harp
Used in vocabulary (774 in total)
sky; the air; weather; far-off place; distant place; state of mind; feeling
air; atmosphere; mood; situation; someone with no presence; someone who doesn't stand out at all
space; room; airspace
Examples (200 in total)
He was looking at the sky.
He stood looking at the sky.
Without air and water, nothing could live.