In Marxism, surplus value refers to the part of the value produced by workers, excluding the part necessary to maintain their own livelihood.

Your opinion has great value.

The utility value of this app is very high.

We should cherish friends who share our values.

This painting is very valuable.

We always pay attention to the maintenance of this machine.

He is a famous author and a person who is respected by many people.

When the value-added tax rate increases, the burden on consumers also increases.

He pointed at the location on the map.

I excluded him from my plan.