Word Network: 低下する

The act of advancing or improving to a higher level, state, or quality. It is often used for skills, standards, or efficiency.

上昇 (joushou) describes the movement of something going upward or an increase in value, level, or quantity. It is used for physical movement like a balloon rising, as well as abstract concepts like rising temperatures or prices.

A reduction or decrease in the quantity, number, or amount of something. It is commonly used in both general conversation and formal reports to describe a downward trend in data or resources.

A reduction or decline in level, quality, quantity, function, or value. Often used to describe negative trends.