heらすrasu
1.

To make something smaller in quantity, extent, or intensity, often involving a reduction from a previous level or amount.

2.

To lessen the impact or presence of something, particularly in relation to measurable aspects such as budget, resources, or physical quantities.

3.

To reduce the amount of food or resources available, resulting in a state of scarcity or lower satisfaction.

4.

To belittle or diminish someone's status or worth through derogatory comments or actions.

Example:

ジョギングでもして体重を減らすようにしなさい。

すりsuriheらすrasu
1.

To gradually diminish the thickness or surface of an object through repeated friction or pressure, leading to a reduction in its overall quality or integrity.

2.

To cause an object to lose material or become less effective as a result of continuous use or contact with another surface.

3.

To erode or impair something over time by consistent rubbing or grinding, often resulting in a smoother but thinner finish.

Example:

すり減らすのはシーツではなく靴にしろ。