1. sky; the air; the heavens
そしてもう一度、空を見上げる。And then, I look up at the sky again.
2. weather
3. far-off place; distant place
4. state of mind; feeling
often as 〜空もない
5. (from) memory; (by) heart
usu. as 空で
6. falsehood; lie
7. somehow; vaguely
before an adjective
8. fake
before a noun or a verb