This is the 8094th most frequent Japanese word.
家臣
Retainer or vassal.
The word '家臣' here refers to a feudal vassal acting loyally towards their lord, commonly used in historical or literary contexts.
家臣は忠誠を尽くした。
The vassal showed loyalty.
In this sentence, '家臣' conveys the sense of a committed position under a lord, emphasizing duty and honor tied to the role.
家臣としての責任を果たすべきだ。
One should fulfill responsibilities as a retainer.
Here, '家臣' indicates a formal title or role serving a monarch or leader, showing the start of such a relationship.