連邦・聯邦|れんぽうrenpou[0]heiban (flat)

JLPT N1approx.Common
Which spelling to use
連邦連邦 is the most common and most standard form; for beginners, it is the default choice.
聯邦聨邦 is a rarely used form written entirely in kanji; beginners should choose 連邦 instead.
Definitions
  1. nounfederation (of states); confederation; commonwealth; union
    Americans pay both federal taxes and state taxes.
Synonyms & antonyms
  • SynonymフェデレーションNeutralLoanword for a federation or association of groups, mostly in organization names; Japanese usually says 「連盟」. 「連邦」 leans toward state structure.
  • Synonym連邦国家れんぽうこっかWrittenIn written/formal prose, a federal state; more explicit than 「連邦」, which can stand alone, as in 「連邦政府」.
  • Antonym単一国家WrittenIn written/formal prose, a unitary state — the opposite of a 「連邦」 formed from multiple states.

Use 「連邦」 for federal states or the federal government, as in 「ロシア連邦」. 「フェデレーション」 appears in organization names (Japanese usually says 「連盟」); 「連邦国家」 explicitly means a federal state; 「単一国家」 is the opposite, a unitary state.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 複数ふくすうの州しゅうや国くにが単一たんいつの主権しゅけんの下したに結合けつごうして形成けいせいする国家こっか。
Kanji in this word
English equivalents

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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