please

"Làm ơn" is the standard way to express politeness when making a request or asking for a favor in Vietnamese. It functions as an adverbial modifier that softens the imperative nature of a command, signaling that the speaker is acknowledging the recipient's autonomy and kindness. In everyday conversation, the word is often placed at the beginning or end of a sentence. While it is essential for polite requests, using it too frequently in intimate relationships can sometimes sound overly distant or ironic; thus, it is best reserved for strangers, acquaintances, or formal settings.
In conversation
Asking for directions
Làm ơn cho hỏi, bưu điện ở đâu vậy ạ?
Please, may I ask where the post office is?
Anh cứ đi thẳng rồi rẽ trái nhé.
Just go straight and turn left.
Using 'ạ' at the end adds an extra layer of respect.
At a restaurant
Cho tôi một ly cà phê đá, làm ơn.
I'll have an iced coffee, please.
Dạ, chờ em một chút ạ.
Yes, please wait a moment.
Placing 'làm ơn' at the end of the sentence is common when ordering.
Examples
Làm ơn giúp tôi với!
Please help me!
Làm ơn giữ trật tự trong thư viện.
Please keep quiet in the library.
Làm ơn cho phép tôi được bày tỏ quan điểm của mình về vấn đề này.
Please allow me to express my viewpoint on this matter.