This is the 8560th most frequent Chinese word.
tan
The Chinese word "tan" (谈) means "to talk" or "to discuss."
In this sentence, '谈' (tán) means 'to discuss' or 'to talk about'.
我们可以在这个问题上谈一谈。
We can discuss this issue.
Here, '弹' (tán) is used to indicate 'to play (a musical instrument by plucking or striking)'.
他的钢琴弹得非常好。
He plays the piano very well.
In this context, '塌' (tà/tān in different readings) refers to 'to collapse or sink'.