Word
Kana: こうたい Romaji: koutai Level: N2

交替

Meaning in English

change, relief, alteration

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Dictionary

Word context

What it means

交替 means alternation or substitution, referring to a planned swap where one person or thing takes over from another in a sequence or over time. It captures the concept of taking turns or replacing duties, rather than a one-time change.

Main meanings

  • Alternation or rotation of duties, typically in work schedules, teams, or responsibilities
  • Substitution or replacement of a person, object, or process when the usual one is unavailable
  • Switching states in a mechanism or system to maintain continuity and efficiency

How to use it

Used mainly in formal and organizational contexts to describe a scheduled handover of duties, shifts, or roles. Common in corporate HR, operations, and public settings; in sports it appears in contexts of substitutions, though 交代 tends to be more common; typical phrases include 交替で and 交替制.

Variants and close terms

  • 代替 (daitai) — substitution
  • 交替制 (koutai-sei) — system of alternating duties
  • 交替勤務 (koutai kinmu) — shift-based work arrangement

Composition

  • 交: exchange, crossing
  • 替: substitute, replacement
  • Together they convey the idea of exchanging or taking turns in duties or roles

Word class

Noun (suru-verb)

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