This is the 10118th most frequent Portuguese word.
emails
Emails: Messages or correspondence sent and received electronically over the internet.
In this sentence, 'emails' is used as a plural noun referring to electronic messages received.
Eu recebi muitos emails hoje.
I received many emails today.
Here, 'emails' is used as a plural noun indicating electronic messages to be sent.
Você já enviou os emails para o cliente?
Did you send the emails to the client already?
In this case, 'emails' refers to specific messages stored in the individual's email account.