a.

1. （常大写）美国联邦政府的，国家的
   The Federal government decides U.S. foreign policy.

   联邦政府决定美国的外交政策。

2. 联邦（制）的，联邦政府的
   The United States has a federal government.

   美国有联邦政府。

   Switzerland is a federal republic.

   瑞士是联邦共和国。

3. （大写）（美国南北战争时的）北部联盟的

n.[C]

1. （大写）（美国南北战争时的）北部联盟支持者，北军
2. 联邦政府工作人员

adj.

1. having or relating to a system of government in which several states form a unity but remain independent in internal affairs.
2. relating to or denoting the central government as distinguished from the separate units constituting a federation.
   ▸ (Federal) US historical of the Northern States in the Civil War.