Charles Ellicott Commentary Jeremiah 48:3

"The sound of a cry from Horonaim, desolation and great destruction!" — Jeremiah 48:3 (ASV)

Horonaim —literally, the two caverns, or the two Horons—may imply, like other dual names of towns, that there was an upper and a lower city. It is mentioned in Isaiah 15:5, but has not been identified.