How to say "reproduction" in Japanese

Choosing the right word
  • 複製ふくせいCommon
    noun, suru verb, transitive verbReproduction as making a copy or duplicate of an original — an artwork, a document, data — with the emphasis on faithful duplication; also covers reprinting.
    君きみが見みている絵えはピカソの複製ふくせいだ。↗
    The picture you are looking at is a copy of a Picasso.
  • 生殖せいしょくCommon
    suru verb, intransitive verb, no-adjectiveThe word for biological reproduction: the process by which organisms produce offspring. It appears in biological and medical contexts and is not used for copying things.
  • 繁殖はんしょくJLPT N1approx.Common
    noun, suru verb, intransitive verbReproduction viewed as breeding and multiplication: animals breeding or being bred, plants propagating. The nuance is increasing in number, so it suits talk of breeding programs and population growth.
    8月がつ下旬げじゅんに彼かれらは繁殖はんしょくのために長ながい旅たびに出発しゅっぱつします。↗
    In late August, they set off on a long journey for breeding.
  • 複写ふくしゃJLPT N2approx.Common
    noun, suru verb, transitive verbCopying or duplication, typically of documents, pictures, or other material by reproducing them; think of photocopying. For "reproduction" it is best when the act of copying is in focus.
    エジソンは複写ふくしゃの装置そうちを発明はつめいした。↗
    Edison invented a device for duplication.
  • 再生産さいせいさんCommon
    noun, suru verb, transitive verbReproduction in the sense of producing something again, especially capital or goods in economic contexts; it is not used for biological reproduction or for making copies.

For copies of artworks or documents choose 複製 or 複写, with 複写 stressing the act of copying; use 生殖 for biological reproduction, 繁殖 for breeding and propagation, and 再生産 for economic reproduction.

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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