This is the 838th most frequent Vietnamese word.
bao
The Vietnamese word "bao" can mean "bag," "envelope," or "to cover/wrap," depending on context.
Here, "bao" refers to an envelope, showing its use as a noun meaning a container for letters.
Tôi vừa mua một chiếc bao thư.
I just bought an envelope.
In this sentence, "bao" is part of the phrase "bao giờ" which means always or whenever, showing its use in a common expression.
Anh ấy bao giờ cũng đến muộn.
He is always late.
Here, "bao" means to treat or to cover expenses, often used to express offering to pay for someone.