en masse
/ɒ̃ ˈmas
/adverb
In a group; all together: the cabinet immediately resigned en masse...
- They came en masse to the city square to demonstrate against the Communist government.
- Baked eggs are a lovely, easy dish to serve to company especially when the company has arrived en masse.
Synonyms
(all) together, as a group, in a body, as one, as a whole, in a mass, wholesale;
simultaneously, all at once, at the same time, at one and the same time, at the same instant, at the same moment, contemporaneously;
in unison, in concert, in chorus;
French en bloc, ensemble
rare synchronously
Origin
Late 18th century: French, 'in a mass'.