This is the 6799th most frequent Chinese word.
河北
Hebei: A province in northern China.
In this usage, '河北' functions as the destination of the action, specifying the target location for the planned travel.
我计划明天去河北旅行。
I plan to travel to Hebei tomorrow.
In this sentence, '河北' refers to the geographical proper noun, representing a specific province in China.
河北省是中国的一个省份。
Hebei Province is a province of China.
Here, '河北' serves as a possessive descriptor indicating ownership or relation to the Hebei region.