Earth electrode
Earther designated
- Erder (Kalletal) , district of Kalletal in the North Rhine-Westphalian district of Lippe
- Earthing (electrical installation) , also: earthing electrode , uninsulated, electrically conductive element of an earthing system for electrical current
- Wüstung Erder , previously also called Erdere and Herdere and Erder , a desolate fallen place within Hanover in the Linden-Nord district