The Meaning of koutai [交替] In Japanese

交替
こうたい
Romaji: koutai N3

What does 交替 mean?

Translation and Meaning

alternation, substitution, replacement

Definition

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.

Type

Noun (suru-verb)

Stroke Order

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

Composition

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

Usage

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.
💡 Tips
Imagine two people swapping tasks like passing a baton; 交 indicates crossing or exchange, 替 signifies substitution, so the word evokes a deliberate handover rather than a one-off change.

Variations

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

Example Phrases

  • 私たちは交替で仕事を引き継ぎ、休憩も交互に取ります。
    watashitachi wa kōtai de shigoto o hikitsugimasu, kyūkei mo kōgo ni torimasu.
    We take turns handing over work and also take breaks in turn.
    Lista:
    • 私たちは (watashitachi wa) – direct translation in en
    • 交替で (kōtai de) – direct translation in en
    • 仕事を (shigoto o) – direct translation in en
    • 引き継ぎます (hikitsugimasu) – direct translation in en
    • 休憩も (kyūkei mo) – direct translation in en
    • 交互に (kōgo ni) – direct translation in en
    • 取ります (torimasu) – direct translation in en
    Here 「交替」 means taking turns; で marks the manner, indicating actions are done in turn.
交替