DECOLLETAGE Meaning of DECOLLETAGE in English [de.col.le.tage] n [F, action of cutting or wearing a low neckline, fr. decolleter] (1894) 1: the low-cut neckline of a dress 2: a decollete dress 3: [1]bust 2. Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012