安全

The complete end or cessation of an event, especially something negative like a disease, war, or social unrest.

A severe shortage or lack of something necessary, such as food, water, or vitamins.

Transient, temporary, or passing. Used to describe symptoms, fashions, or phenomena that only last for a short time.

To promote or increase something desirable, such as health, welfare, or efficiency. It is more formal than 'fueru' or 'ageru'.

The spread of something undesirable, such as a disease, corruption, or a negative social trend, over a wide area.

The science and art of preventing disease, prolonging life, and promoting health through organized efforts of society.

The preservation of health through organized community efforts, hygiene, and medical services.

To settle down or come to an end (like an epidemic or unrest) or to converge toward a single point in mathematics or logic.

The process of providing or obtaining the food necessary for health and growth; the substances in food that help people stay healthy.

A sign or indication that something is about to happen, especially something negative. It is used to describe medical symptoms or economic indicators.