This is the 330th most frequent Portuguese word.
formação
"Formação" in English means "formation" or "training," depending on context.
In this sentence, 'formação' refers to the geological process through which the mountain was formed.
A formação da montanha levou milhões de anos.
The formation of the mountain took millions of years.
In this context, 'formação' refers to the act of assembling or organizing a group, specifically a team.
A formação da equipe de projeto envolveu profissionais de diversas áreas.
The formation of the project team involved professionals from various fields.
Here, 'formação' is used to mean the educational or training background someone has.