The Vietnamese word "mồm" translates to "mouth" in English. It is a common term used in everyday conversation.
Cái mồm của tôi bị đau.
(My mouth hurts.)
Anh ấy có một cái mồm rất lớn.
(He has a very big mouth.)
In summary, "mồm" is a casual term for "mouth," commonly used in daily conversation. It can describe the physical mouth or be used in expressions related to speaking or gossiping.