空を使う (そらをつかう) Japanese meaning | KotomoraMeanings
1
expression, godan verb (-u)
pretend not to know; feign ignorance
Used when someone deliberately acts as if they don't know something, often to avoid responsibility or awkwardness. Related to 空とぼける.
See also: 空とぼける
都合が悪くなると、彼女はいつも空を使う。
Whenever things get awkward, she always feigns ignorance.
2
expression, godan verb (-u)
tell a lie; lie
A somewhat old-fashioned or literary way to say 'to lie'. In modern casual speech, 嘘をつく is far more common.