ふ増fuやすyasu
1.
To cause a quantity to become larger or more numerous, often by adding or cultivating additional elements or resources.
2.
To enhance or amplify resources, possessions, or opportunities, thereby improving overall availability or abundance.
3.
To promote the growth or reproduction of living organisms, resulting in a larger population.
4.
To make something more prevalent or accessible, particularly in economic or social contexts, contrasting with the idea of reduction.
Example:
体力を増やすように努めなさい。