This is the 4023rd most frequent Chinese word.
八月
August
Here, '八月' is used as a noun to denote the month of August.
八月是我最喜欢的月份。
August is my favorite month.
In this usage, '八月' functions as a time expression to indicate when the activity will take place.
我们将在八月去旅游。
We will go traveling in August.
'八月' serves here as the temporal context within which an event occurred.