"Mid-Autumn Festival" has two meanings: ① August 15th in the summer calendar. Because it is in the middle of autumn, it is called. (2) the second month of autumn, namely the summer calendar in August. "Zhou Li Xia Guan Fu": "Mid-Autumn Festival, teach the soldiers." In the middle, pass the "secondary".
"Mid-autumn" has only one meaning: August in the lunar calendar. Zhong means that its month is in the middle of autumn. Yao Dian of Shangshu: "The stars in the night are empty, and Yin Zhongqiu is the one."
In Modern Chinese Dictionary, "Mid-Autumn Festival" and "Mid-Autumn Festival" are clearly distinguished:
Mid-Autumn Festival is a traditional festival in China. On the fifteenth day of the eighth lunar month, there is the custom of enjoying the moon and eating moon cakes.
the second month of autumn, that is, the eighth month of the lunar calendar.
It can be seen that "Mid-Autumn", that is, August in the summer calendar, was sometimes called "Mid-Autumn Festival" in ancient times. However, the first meaning of Mid-Autumn Festival, that is, the Mid-Autumn Festival on August 15th in the summer calendar, can never be called Mid-Autumn Festival, because Mid-Autumn Festival is a day and Mid-Autumn Festival is a month.