DMZalso: ディーエムゼットFreq.FrequencyTop 100,000Meanings1noundemilitarized zone; DMZAbbreviation of 非武装地帯 (demilitarized zone). Used in military, political, and sometimes IT contexts.See also: 非武装地帯韓かん国こくと北きた朝ちょう鮮せんの間あいだにはDMZが設せっ定ていされている。A DMZ has been established between South Korea and North Korea.