How to say "series" in Japanese

Choosing the right word
  • シリーズJLPT N2approx.Common
    nounThe loanword for a set of related items presented one after another — books, television programmes, films, sporting fixtures or product lines. Usually the safest choice for this sense of 'series'.
    その人気にんきテレビシリーズが発端ほったんとなって、秋あきには二ふたつのショー番組ばんぐみが誕生たんじょうすることになっている。↗
    That popular television series is going to spin off two new shows in the fall.
  • 連続れんぞくJLPT N3approx.Common
    noun, suru verb, transitive verb, intransitive verbAn unbroken succession of things following one after another. It stresses continuity rather than the relatedness of the items, so it suits runs of events more than sets of works or products.
    Some wise man has said life consists of one disappointment after another.
  • 系列けいれつCommon
    nounA line or system of related things, stressing the connection or lineage linking them, as in affiliated business groupings; not the word for a run of books or broadcasts.
  • 一連いちれんJLPT N1approx.Common
    no-adjectiveA connected series or chain of related things viewed as a whole, typically events, incidents or actions forming one sequence. Close to English 'a series of'.
    彼かれらは一連いちれんの音楽会おんがくかいを開催かいさいした。↗
    They gave a series of concerts.
  • 直列ちょくれつCommon
    no-adjectiveStrictly the electrical sense: components arranged one after another in a circuit so that current passes through each in turn. Never used for books, shows or events.

Use 「シリーズ」 for a set of related books, shows or products, 連続 for an unbroken succession, 系列 for a line or system of related things, 一連 for a connected run of events, and 直列 only for electrical circuits.

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

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

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