漏洞 Traditional form: 漏洞 Pinyin (reading): lòudòng Definitions: leak hole gap loophole Characters: 漏 - to leak, to drip; hour glass; funnel 洞 - cave, grotto, hole, ravine Traditional characters: 漏 - to leak, to drip; hour glass; funnel 洞 - cave, grotto, hole, ravine