유효하다

To work at a certain place or in a certain position, usually referring to formal employment. It emphasizes the place or the shift of work.

The ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result.

To adjust, coordinate, or regulate something to better fit a situation or to resolve a conflict.

To combine or unify different parts into one whole system or group. It is commonly used when discussing technology, organizations, or multicultural societies.

A plan of action or policy designed to achieve a major or overall aim, especially in war, politics, or business.

To distribute or designate (resources, tasks, or funds) for a particular purpose.

A fixed regular payment, typically paid on a daily or weekly basis, made by an employer to an employee, especially to a manual or unskilled worker.

To establish or found an organization, institution, or system. It implies creating a formal entity with a specific purpose.

A plan, idea, or suggestion put forward for consideration or discussion by others.

The act of making something diverse or varying, or the state of becoming diverse. It involves increasing the variety of types, forms, or operations.