The Vietnamese word "ruột thịt" refers to a close familial relationship, specifically indicating blood relatives or those who are connected by birth. It literally translates to "gut meat," which evokes a sense of closeness and intimacy, much like the strong bond that exists within a family.
While "ruột thịt" primarily refers to blood relatives, it can also be used metaphorically in some contexts to express deep friendships or bonds that feel as strong as family ties.
"Ruột thịt" is a term that emphasizes the importance of biological family ties in Vietnamese culture.