しめい使命shimei
1.

A significant task or responsibility entrusted to an individual, often perceived as a fundamental aspect of their purpose or calling in life.

2.

An assignment or duty that one is compelled to fulfill, usually with an implication of importance or urgency, often reflecting a moral or ethical obligation.

3.

A role designated to someone that carries the weight of expectations or responsibilities, often linked to a larger goal or vision.

Example:

彼らは使命を果たした。

しめいかん使命感shimeikan
1.

A feeling of profound responsibility and commitment towards fulfilling one's mission or duty.

2.

An intrinsic motivation and drive that inspires an individual to pursue and accomplish their designated role or purpose.

3.

The strong conviction and passion that pushes someone to dedicate themselves fully to their work or calling.

4.

A deep-seated awareness of one's responsibilities that impels action to achieve specific goals or objectives associated with a particular role.