One of the most magnificent gifts a parent can give their child is a rich and deep vocabulary. It is with words that each of us begins to grasp and manipulate the world in ways more meaningful than simply meeting the biological necessities of life.
The right word allows us to put our hand behind the interminable backdrop of reality and bring forth an object or idea or system and inquire of it. Vocabulary broadens the breadth of inquiry and deepens the depth of investigation. It is a fitness of the mind.