Theileriases are a group of tick-borne diseases that affect animals.

Theileriasis is a tick-borne disease that affects cattle and other animals.

I love to eat potatoes in their jackets.

She is a Theistic Satanist.

Theistic Satanism is a religious belief that worships Satan as a deity.

He loses his head whenever he gets angry.

When faced with a difficult situation, some people tend to lose their head and make irrational decisions.

The queen shouted, 'Off with their heads!'

Each to their own, I suppose.

Their nibs are going to the party tonight.