The Vietnamese word "bâu" has several meanings and uses, which can be understood in different contexts.
As a verb: "bâu" means to swarm around or to crowd over something. It often refers to animals or people gathering closely around a specific area.
As a noun: "bâu" can refer to a collar of a jacket or a pocket of a jacket. This usage is less common but important in specific contexts, especially in tailoring or fashion.
In summary, "bâu" is a versatile word in Vietnamese that can describe the act of swarming or crowding, as well as refer to parts of clothing like collars or pockets.