spac·ing /ˈspeɪsɪŋ/ noun [uncountableU] SPACE/GAPthe amount of space between the printed letters, words, or lines on a page 〔字母之间、单词之间或行之间的〕间距single spacing (=lines with no empty lines between them) 单倍行距
double spacing (=lines with one empty line after each one) 双倍行距