This is the 4460th most frequent Portuguese word.
caro
"Expensive" or "dear."
Here, 'caro' means 'expensive', which is a common usage when describing the price or cost of items.
Este carro é muito caro.
This car is very expensive.
In this usage, 'caro' means 'dear', often as a term of endearment or respect in addressing someone.
Meu caro amigo, como você está?
My dear friend, how are you?
The word 'caro' in this sentence conveys the idea of being 'costly' or having potential negative consequences.