typeface, n.Definitions

A Typeface is a beautiful group of letters, not a group of beautiful letters.

Typeface is to the written word what different dialects are to different languages.

The Typeface is popular to the degree that it is easy to read, to the degree that it disappears from cognition. Whether a font is easy to read because it is commonly used, or commonly used because it is easy to read, is impossible to tell.