The interpretation thereof. — Literally, its breaking. The word is a metaphor from breaking a nut — enucleation.
Related Commentaries of Judges 7:15
Judges 7:15
15 And it was so, when Gideon heard the telling of the dream, and the interpretationb thereof, that he worshipped, and returned into the host of Israel, and said, Arise; for the LORD hath delivered into your hand the host of Midian.