This is the 2887th most frequent Catalan word.
dotzena
"Dotzena" means "dozen" in English.
Here, 'dotzena' is used to count a group of twelve objects, specifying a dozen eggs.
He comprat una dotzena d'ous al mercat.
I bought a dozen eggs at the market.
In this sentence, 'dotzena' is used as an ordinal numbering word to denote the twelfth instance in a sequence of weeks.
A la dotzena setmana, vam acabar el projecte.
At the twelfth week, we finished the project.
Here 'dotzena' is used metaphorically to emphasize a quality, in this case, patience, suggesting an abundant or excessive amount.