lake A body of water or other liquid of considerable size contained on a body of land. ENVO:00000020 ENVO:00000020 FTT:221 FTT:704 FTT:909 Geonames:LK Geonames:LKS LAKE Lake TGN:21114 TGN:21115 Wikipedia:Lake broad catch basin idomal_namespace lake lakes llyn loch lochan lough mere mortlake open water pasteuer lake tarn water body