This is the 7518th most frequent Portuguese word.
nicolas
"Nicolas" is a proper noun, the Portuguese form of the name "Nicholas."
In this sentence, 'Nicolas' is a proper noun, specifically the name of the individual being talked about.
Nicolas gosta de jogar futebol com os amigos.
Nicolas likes to play football with his friends.
Here, 'Nicolas' is again a proper noun used to directly refer to an individual who might assist.
Vamos perguntar ao Nicolas se ele pode nos ajudar.
Let's ask Nicolas if he can help us.
In this usage, 'Nicolas' still functions as a proper noun identifying the individual expected to attend a meeting.