Federal /ˈfɛdərəl/ noun
plural Federals
plural Federals
Learner's definition of FEDERAL
[count] US
1
: a supporter of the government of the U.S. in the American Civil War
especially : a soldier in the federal armies（美国南北战争时期）北部联邦政府支持者；（尤指）北部联邦军队士兵 — compare confederate 2
formal : a federal agent or officer联邦探员；联邦政府官员 —
usually plural通常用复数