The Vietnamese word "dây mũi" refers to a "lead" or "rope" that is specifically used to tie around the nose of an animal, often for controlling or guiding it. This term is most commonly associated with livestock, such as cattle or horses.
In more advanced contexts, "dây mũi" can also refer to the concept of control or guidance in a broader sense, such as guiding someone in a specific direction or behavior, although this is less common.
While "dây mũi" primarily refers to an animal lead, it can also metaphorically refer to any means of control or guidance in different contexts, though this usage is rare.
In summary, "dây mũi" is a specific term for a lead tied to the nose of an animal, commonly used in agriculture and animal husbandry.