Cave
Den
noun
The kanji and the word are exactly the same. That means they share meanings as well.
ほら
Hoe Ra (ほら), the version of Ra who carries a hoe around, is using said hoe to dig out a cave for himself, to provide shade from the sun (despite being the god of sun). He digs digs digs and then sits in his nice cave, hoe in hand.
その薄気味悪い洞は、村の北外れにひっそりと佇んでいました。
The eerie cave stood silently in the outskirts north of the village.