This is the 177th most frequent Catalan word.
joan
"Joan" is a Catalan male given name, equivalent to "John" in English.
In this sentence, 'Joan' is a proper noun serving as a subject, referring to a person's name.
Joan va anar al mercat aquest matí.
Joan went to the market this morning.
This sentence does not include 'Joan' but uses 'jo' which means 'I', showing the importance of distinguishing different similar-looking words.
Quan jo anava al bosc, sempre hi trobava pau.
When I used to go to the forest, I always found peace there.
In this sentence, 'Joan' is introduced with the article 'en', a typical Catalan construct when introducing or referring to a male person informally.