少子化

Harmful effects, evils, or negative consequences resulting from a particular system, habit, or situation.

Relating to society or its organization. It describes issues, status, or behaviors that affect people as a community rather than just individuals.

Very serious, grave, or critical. Often used to describe problems that have significant negative effects.

A building, equipment, or complex established for a specific purpose or service, such as public utilities, education, or healthcare.

The actual condition or reality of a situation, especially as opposed to how it is supposed to be or how it appears.

To propose or suggest an idea or policy, especially to a group or authority. It carries a nuance of making a formal recommendation for improvement.

A thing that a person or group does or has done; the state of being active.

The state of being diverse; variety. It often refers to a range of different things or people (cultural, biological, etc.).

Being close together or having a very close connection or relationship.

The power or right to give orders, make decisions, and enforce obedience, or a person with expert knowledge. Frequently used in IELTS when discussing leadership or academic expertise.