This is the 391st most frequent Vietnamese word.
nông
"Shallow" or "agriculture" (depending on context).
Here, 'nông' means 'shallow', describing the depth of the field.
Ruộng này rất nông.
This field is very shallow.
In this sentence, 'nông' implies a lack of depth or comprehensiveness in knowledge.
Anh ấy có kiến thức nông về môn học này.
He has shallow knowledge in this subject.
Here, 'nông' is part of 'nông nghiệp' meaning 'agriculture', relating to the farming context.