This is the 5397th most frequent French word.
bataillon
Battalion; a large military unit or group.
Here, 'bataillon' is used in its literal sense referring to a military unit.
Le bataillon est composé de plusieurs unités militaires.
The battalion is composed of several military units.
In this sentence, 'bataillon' is used metaphorically to describe a large organized group of people.
Un bataillon de bénévoles est venu aider après la tempête.
A battalion of volunteers came to help after the storm.
Here, 'bataillon' metaphorically describes an organized group united for a common purpose.