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English definition of “army”

army

noun uk   /ˈɑː.mi/ us    /ˈɑːr-/
the army [+ sing/pl verb] B1 a particular country's fighting force: When did you join the army? He has decided on a career in the British Army. The army was/were called out to enforce the curfew.The armed forces generally B1 [C] a military force that has the training and equipment to fight on land: Both the armies suffered heavy losses in the battle. The minister is believed to have been killed by the rebel army.The armed forces generally C2 [C usually singular] a large group of people who are involved in a particular activity: She brought an army of supporters with her. Groups of people [C usually singular] informal the supporters of a football team, especially ones who travel to games in different towns, cities, or countries: Scotland's 1 - 0 victory over France gave the Tartan Army something to celebrate.
(Definition of army from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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