Correct
立秋
/ lìqiū /
Strokes
Definition
Liqiu or Start of Autumn, 13th of the 24 solar terms 二十四节气 7th-22nd August
Example
As a Verb
(of autumn) begin
As a Noun
Beginning of Autumn ［beginning of the 13th of the 24 solar terms］
As a Noun
Beginning-of-Autumn Day ［falling on Aug 7, 8 or 9］