bat‧tal‧ion /bəˈtæljən/ noun [countable]
[Date: 1500-1600; Language: French; Origin: bataillon, from Old Italian battaglione, from battaglia 'group of soldiers, battle', from Late Latin battalia; ⇒ battle¹]

1. a large group of soldiers consisting of several companies (company)

2. a large group of people who are doing something with a particular purpose
battalion of
a battalion of supporters

[TahlilGaran] Dictionary of Contemporary English ▲