noun · an informal or dialectal way to address or refer to one's father

他从小就跟着阿爹在田里干活。

noun · a respectful or familiar term of address for an elderly man

那位阿爹正在公园里悠闲地散步。

noun · a dialectal term for one's father's father

在某些方言里，人们管祖父叫阿爹。