This is the 5759th most frequent Chinese word.
合肥市
Hefei City: The capital of Anhui Province, China.
In this sentence, '合肥市' is used as the proper noun denoting the city Hefei, highlighting it as a travel destination.
我计划下个月去合肥市旅游。
I plan to travel to Hefei City next month.
Here, '合肥市' identifies the city Hefei as a geographical entity and administrative capital of Anhui Province.
合肥市是安徽省的省会。
Hefei City is the capital of Anhui Province.
'合肥市' in this example refers to the city of Hefei in the context of its economic progress and development.