This is the 2069th most frequent Catalan word.
gerard
The Catalan word "gerard" is a proper noun, typically a male given name equivalent to "Gerard" in English.
Here, 'Gerard' is used as a proper noun referring to a person's name.
En Gerard és un estudiant aplicat.
Gerard is a diligent student.
In this sentence, 'Gerard' again functions as a proper noun naming a person with whom the speaker had a conversation.
Hem parlat amb en Gerard sobre el projecte.
We talked with Gerard about the project.
Here, 'Gerard' is used possessively to indicate ownership of the book.