Indentation

Delle

(notch or recess in a margin or border)

Einbuchtung

(recess or sharp depression in a surface)

Einrückung

(act of beginning a line at a distance from the flush line)

Einzug

(measure of distance to the flush line)

Spiegelstrich

(a division unit of a piece of law)

Vertiefung

(recess or sharp depression in a surface)