In metal typesetting, a font is a particular size, weight and style of a typeface, defined as the set of fonts that share an overall design.For instance, the typeface Bauer Bodoni (shown in the figure) includes fonts "Roman" (or "regular"), "bold" and "italic"; each of these exists in a variety of sizes. In traditional printing, fonts were physically created using metal or wood type, with a font for each size.
In the digital description of fonts (computer fonts), the terms font and typeface are often used interchangeably. For example, when used in computers, each style is stored in a separate digital font file. Most are scalable fonts, so all sizes of a style are encompassed in one font.