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federal (EN)
adjective, noun

adjective “federal”

base form federal, non-gradable
  1. (of a country) having a system of government where the power is partly delegated to state or province governments
    The US is a federal republic.
  2. relating to the national government in a country where power is divided between a central government and states or provinces
    Federal law applies in this case.

noun “federal”

singular federal, plural federals
  1. (US) a federal law-enforcement agent, especially an FBI agent
    The federals arrested the suspect after gathering enough evidence.