(ˈ)änˈmas, -maa(ə)s, -mais also (ˈ)äⁿˈ- or (ˈ)inˈ- or (ˈ)enˈ- adverb
Etymology: French
1. : in a body
the frogs began to die en masse
the convicts were transported en masse to the new prison
2. : in general : as a whole
viewing the new clothes en masse