This is the 3001st most frequent Portuguese word.
tadeu
"Tadeu" is a masculine given name in Portuguese, equivalent to "Thaddeus" in English.
In this sentence, 'Tadeu' is used as a proper noun referring to a person's name.
Eu encontrei Tadeu na festa ontem.
I met Tadeu at the party yesterday.
Here, 'tadeu' is creatively used to express a figurative concept, though this usage is non-standard and stylized.
A tadeu da situação foi perceber que todos estavam enganados.
The moral of the situation was realizing that everyone was mistaken.
In this usage, 'Tadeu' refers to the name given to a specific plant species.