默哀 Traditional form: 默哀 Pinyin (reading): mò'āi Definitions: to observe a moment of silence in tribute Characters: 默 - silent; quiet, still; dark 哀 - sad, mournful, pitiful; to pity; to grieve Traditional characters: 默 - silent; quiet, still; dark 哀 - sad, mournful, pitiful; to pity; to grieve