Because I am able to communicate with him, I can understand his thoughts without him saying anything.

We need to have an understanding to solve the problem.

He ran away for fear of prosecution.

He was prosecuted for fraud.

The officers and soldiers fought together on the battlefield.

He claims to be a graduate student, informally.

His graduation exhibition piece was very moving.

As the leader, he guided our group to the park.

I led the students to the library.

The calculation of determinants is an important part of mathematics.