Pitch

(1) For fixed-pitch (or monospaced) fonts, pitch refers to the number of characters printed per inch. Pitch is one characteristic of a monospaced font. Common pitch values are 10 and 12.

In proportional-pitch fonts, different characters have different widths, depending on their size. For example, the letter d would be wider than the letter I. Proportional fonts, therefore, have no pitch value.

(2) In graphics, dot pitch refers to the spacing between pixels on a monitor. The smaller the dot pitch, the sharper the image.