Abbé is a special title given to a man who works in the church. It's like a job title or a nickname.
In the past, it was more common for men to become an Abbé when they finished studying in the church. Nowadays, it's not as common for men to become Abbé's as it used to be.
Abbé's can do lots of different things in the church - like leading prayers, helping to organize religious ceremonies, and teaching people about the religion.
It's almost like being a special helper for the church, and Abbé's are often respected and admired by those who go to church.