This is the 922nd most frequent Chinese word.
交
"交" means "to hand over, deliver, exchange, intersect, or make friends."
Here, '交' is part of the word '交织', meaning 'intertwine', describing the complex interactions or overlap of entities.
城市的主干道上车流交织。
Traffic intertwines on the main roads of the city.
In this sentence, '交' is used to mean 'submit' or 'hand over', as it implies delivering something to someone in authority.
我们需要交这份作业给老师。
We need to submit this assignment to the teacher.
In this sentence, '交' is used in the phrase '交心', which means 'to share thoughts or feelings deeply', reflecting mutual emotional exchange.