行送り

Noun

 * 1) a
 * 2)  line height, the distance between the center points of the advance heights (in horizontal text) or advance widths (in vertical text) of glyphs in two successive lines, often called "" in modern Western typography
 * 1)  line height, the distance between the center points of the advance heights (in horizontal text) or advance widths (in vertical text) of glyphs in two successive lines, often called "" in modern Western typography

Usage notes
Since line height is almost always uniform unlike character width in both Japanese and Western typographies, there are no meaningful differences between and modern "", even though the former is traditionally measured between the center points of lines, while the latter is measured between. The only exception is how these two measurements are calculated in page layout: Japanese typesetters start with the body text's length/width, line count and font size first, then work backward to and, while Western typesetters simply start with "" (which can be set automatically by software, typically to 120% of the font size). The Japanese approach ensures perfect line alignment between text columns in a page, which is not a concern in Western layout. Mathematically speaking, =  + font size. can be measured in or.