地堑 Traditional form: 地塹 Pinyin (reading): dìqiàn Definitions: trench, rift valley Characters: 地 - earth, ground, soil; land, region; structural particle used before a verb 堑 - moat, pit, trench; cavity Traditional characters: 地 - earth, ground, soil; land, region; structural particle used before a verb 塹 - moat, pit, trench; cavity