This is the 10054th most frequent Catalan word.
oficialment
"Officially."
Here, 'oficialment' is used as an adverb to indicate that the announcement was made in an official capacity or manner.
La decisió va ser anunciada oficialment per l'alcalde.
The decision was officially announced by the mayor.
In this sentence, 'oficialment' again functions as an adverb, stressing the formal procedure of submitting the document.
Aquest document s'ha de presentar oficialment a les autoritats.
This document must be officially submitted to the authorities.
Here, 'oficialment' is used to state the scheduled time for the event in an official context.