間隙 is read as かんげき (kangeki) and means gap.
かんげき
kangeki
かんげきひ
void ratio
しなぷすかんげき
synaptic cleft
すきま
chink (in one's armor, armour)
すきましじょう
niche market
すきまなく
closely
すきまかぜ
cooling off of a relationship
すきまのかみ
God of the gaps
あいだ
among (a group)
まにあわせ
makeshift
かんせつ
indirection
まちがい
improper conduct (e.g. between man and woman)
まぎわ
(just before the) edge