“■”和“燀”均见于《说文解字·火部》,段玉裁《说文解字注》认为“■”字系“■”字的讹误,从火“■”声,属侵部,与属谈部的“惔”旁转。本文从甲骨文字形入手,认为“■”在造字之初其实与“燀”同为一字,从火单声,而“单”与“惔”在上古的读音非常相近,这样就对“■”的字音字形做出了合理的解释。 Duan Yucai’s “Explain Word Note” that “” ■ “word” “” word corruption, From the fire “■ ” sound, the invasion of the Ministry, and the ministry of dialogue “惔 ” aside. This paper starts with the oracle bone inscriptions and argues that “■ ” is actually the same word as “燀 ” at the beginning of the word formation. From the sound of the sound of fire and the pronunciation of “singles” and “惔” Very similar, so that the pronunciation of “” "syllabic made a reasonable explanation.