He used his remarkable ability to help people.

This word has a variant form of a morpheme.

This word has an allophone under certain circumstances.

He is proud to be heterosexual.

He is a foreigner in this country and is not yet accustomed.

His exceptionally good will is the driving force that allows him to act positively even in difficult situations.

The great icosihemidodecahedron is a cube with a very complex shape.

In behavioral sciences, the use of metatools plays a crucial role.

I will hold my birthday party on the twenty-seventh day of the month.

We have our wedding on the twenty-ninth day of the month.