This is the 175th most frequent Portuguese word.
quanto
"Quanto" means "how much" or "how many" in English.
'Quanto' is used as an interrogative word asking for price.
Quanto custa este livro?
How much does this book cost?
'Quanto' is used in a comparative structure 'quanto mais... mais' indicating proportional increase.
Quanto mais estudo, mais entendo.
The more I study, the more I understand.
'Quanto' is used to quantify effort in a statement.