This is the 2692nd most frequent Chinese word.
交往
"To associate; to interact; to have relations."
In this case, '交往' specifies a romantic relationship or dating context between individuals.
他们交往已经半年，现在打算订婚。
They have been dating for half a year and are now planning to get engaged.
In this context, '交往' refers to social interaction or communication one has with others for building or maintaining relationships.
我与邻居交往很频繁，经常一起聊天。
I interact frequently with my neighbors, often chatting together.
Here, '交往' is used to describe exchanges or interactions in terms of culture or ideas between larger entities like groups or nations.