google-fonts/cc-by-sa/knowledge/glossary/terms/spac_axis/term.textproto

name: "Spacing axis (SPAC)"
excerpt: "An axis found in some variable fonts that can be used to adjust the spacing among characters overall, as a percentage from the default spacing."
related_lessons: "introducing_variable_fonts"
related_lessons: "designing_with_variable_fonts_in_desktop_apps"
related_lessons: "styling_type_on_the_web_with_variable_fonts"