げんしょう減少genshou
1.

A process in which the quantity or degree of something declines from a previous level, leading to a smaller or lesser state.

2.

The act of making something smaller or less significant in terms of number or intensity, often resulting in a downward trend compared to prior conditions.

Example:

あまりチームに頼りすぎると、個人の闘争本能が減少するかもしれない。

じんこうげんしょう人口減少jinkougenshou
1.

A sustained reduction in the number of inhabitants in a specific region or country over time.

2.

The phenomenon characterized by a significant and ongoing drop in the total population, often due to factors such as low birth rates and high emigration.

3.

A demographic trend where the total number of individuals living in an area diminishes, leading to potential socioeconomic challenges.

4.

The process through which the population of a given area decreases continuously, impacting various aspects of society, including economy and public services.

たいじゅうげんしょう体重減少taijuugenshou
1.

The process or phenomenon of losing body weight, often associated with health improvements or dietary changes.

2.

The measured difference in body weight that results from caloric deficit or increased physical activity.

3.

A condition that reflects a decrease in the overall mass of a person's body, which can be intentional or unintentional.

4.

The outcome of efforts aimed at shedding excess body mass, commonly linked to fitness regimens or medical interventions.