The term 'Went Underground' can be described by the crossword solutions of HID (3 letters), TUNNELED (8 letters), DUG (3 letters), HIDOUT (6 letters), and BURROWED (8 letters). This phrase is often used to describe a person or group that has gone into hiding, either for safety or secrecy. Hiding could involve concealing oneself in a physical location, such as a cave or tunnel, or it could involve concealing one's identity or activities. Tunneling and digging are also common methods of going underground, as they allow for a person or group to create a hidden space or passage. Hidouts are also commonly used, as they provide a secure place to stay while remaining hidden from view. Finally, burrowing is another way of going underground, as it involves digging a hole or tunnel in order to conceal oneself.