font

In metal typesetting, a font was a particular size, weight and style of a typeface. Each font was a matched set of type, one piece (called a "sort") for each glyph, and a typeface consisting of a range of fonts that shared an overall design.
In modern usage, with the advent of digital typography, "font" is frequently synonymous with "typeface". Each style is in a separate "font file"—for instance, the typeface "Bulmer" may include the fonts "Bulmer roman", "Bulmer", "Bulmer bold" and "Bulmer extended"—but the term "font" might be applied either to one of these alone or to the whole typeface.
In both traditional typesetting and modern usage, the word "font" refers to the delivery mechanism of the typeface design. In traditional typesetting, the font would be made from metal or wood. Today, the font is a digital file.

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