The Vietnamese word "khuyển ưng" refers to a "hireling," which is a term used to describe someone who works merely for material reward, often without loyalty or commitment to their employer or task. It can imply a lack of passion or dedication in the work performed.
In more advanced contexts, "khuyển ưng" might be used metaphorically to describe someone in various situations, such as in politics or social activities, where loyalty is expected but absent.
While "khuyển ưng" primarily denotes a hireling, it can also carry implications of betrayal or opportunism in relationships or professional settings, suggesting that the person might abandon a cause or a role when it no longer serves their interests.