In geology, morphology is the field that studies the shape and structure of the terrain.

This word has a variant form of a morpheme.

Morphology is a part of linguistics that studies the structure of words.

He ate one apple.

This chemical reaction is accelerated by catalysis.

It is important for each person to fulfill their role.

He dreams of entering the world of entertainment.

He is successful in the business world.

He is highly respected in the education world.

He is deeply interested in the spiritual world.