He is the lord of this region.

He feels responsible as the head of the family.

The Lord protects us.

What are you doing?

The myelin sheath protects nerve cells and helps transmit nerve signals.

There is a kind character next to me.

He told me the whole story of the incident.

This machine requires lubricant regularly.

My car needs new lubricating oil.

She is good at speaking using women's language.