I prefer tea with theine over coffee.

Theine was an obsolete form of thane.

Theines are compounds found in tea leaves.

Thein is another spelling for theine.

Thein was a title used in medieval Scotland to denote a person of high rank or nobility.

Theins are my friends.

My friend's last name is Thein.

Theins are a group of small islands located in the Pacific Ocean.