This is the 9177th most frequent Portuguese word.
cabeça
"Head" (part of the body).
Here, 'cabeça' is used metaphorically to represent intellectual ability or talent for business.
Ela tem uma cabeça para negócios.
She has a head for business.
In this sentence, 'cabeça' is used literally to describe the physical part of the body, the head.
Eu machuquei minha cabeça ao cair.
I hurt my head when I fell.
Here, 'cabeça' is used figuratively to encourage someone to reason or think critically before acting.