This is the 153rd most frequent Vietnamese word.
dùng
"Use" or "utilize."
Here, 'dùng' is used to mean 'to use' or 'to utilize' for a specific purpose.
Tôi dùng bút viết thư.
I use a pen to write a letter.
In this sentence, 'dùng' is employed to indicate the utilization of something for a process or action.
Bạn có thể dùng lá trà này để pha trà.
You can use these tea leaves to make tea.
This usage of 'dùng' shows a habitual or typical use in a societal or cultural context.