Army
/ˈɑː.miː/
noun
A large, highly organized military force, concerned mainly with ground (rather than air or naval) operations.
“The army was sent in to quell the uprising.”
The governmental agency in charge of a state's army.
“The army opposed the legislature's involvement.”
A large group of people working toward the same purpose.
“It took an army of accountants to uncover the fraud.”