The Vietnamese word "rìu" is a noun that means "axe" in English. An axe is a tool that has a heavy metal blade attached to a long handle. It is commonly used for chopping wood or hacking at objects.
In more advanced contexts, "rìu" can be used in idiomatic expressions or metaphorical language. For example, if someone is making a significant change or decision, one might say they are "sử dụng rìu" (using an axe) to imply they are cutting away the old to make way for the new.
While "rìu" primarily refers to the tool, it can also imply a forceful or decisive action in a non-literal sense. However, it does not have many other meanings outside of this context in Vietnamese.