繁殖・蕃殖|はんしょくhanshoku[0]heiban (flat)

JLPT N1approx.Common
Which spelling to use
繁殖繁殖 is the most common and standard written form; it expresses breeding, propagation, reproduction, or multiplication.
蕃殖蕃殖 is a rarely used written variant of 繁殖 with the same meanings, so learners will seldom need to choose it.
Definitions
  1. noun, suru verb, intransitive verbbreeding; propagation; reproduction; multiplication; increase
    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.
Conjugation
Dictionary form繁殖する(はんしょくする)
Polite (masu)繁殖します(はんしょくします)
Negative (nai)繁殖しない(はんしょくしない)
polite (masen)繁殖しません(はんしょくしません)
classical zu / nu繁殖せず・繁殖せぬ(はんしょくせず・はんしょくせぬ)
Past (ta)繁殖した(はんしょくした)
polite (mashita)繁殖しました(はんしょくしました)
Past negative (nakatta)繁殖しなかった(はんしょくしなかった)
polite (masen deshita)繁殖しませんでした(はんしょくしませんでした)
Te form繁殖して(はんしょくして)
Potential繁殖できる(はんしょくできる)
Passive繁殖される(はんしょくされる)
Causative繁殖させる(はんしょくさせる)
Causative passive繁殖させられる(はんしょくさせられる)
Conditional (ba)繁殖すれば(はんしょくすれば)
tara繁殖したら(はんしょくしたら)
Volitional繁殖しよう(はんしょくしよう)
polite (mashou)繁殖しましょう(はんしょくしましょう)
Imperative繁殖しろ(はんしょくしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym増殖ぞうしょくWrittenWritten word for proliferation — cells, tissues or individuals multiplying, naturally or artificially, as in 「細胞の増殖」; 「繁殖」 centers on organisms producing offspring.
  • Synonym生殖せいしょくWrittenWritten biological term for producing new individuals to carry on the species, as in 「有性生殖」; 「繁殖」 stresses multiplying in number.
  • Related増えるふえるNeutralEveryday verb for numbers or amounts simply growing; the most common choice, and not limited to living things.
  • Related増やすふやすNeutralTransitive verb for bringing about an increase, as in 「財産を増やす」, often by deliberate effort; the focus is on someone or something causing the growth.
  • Related増加ぞうかWrittenWritten noun for an increase in quantity, as in 「人口増加」; leans formal.
  • Related増大ぞうだいWrittenWritten noun for expansion in scale or size rather than mere count, as in 「需要の増大」.
  • Related増すますNeutralVerb for increasing or intensifying, as in 「勢いが増す」; unlike 「繁殖」 it is not tied to organisms breeding.
  • Antonym減少げんしょうWrittenAntonym: written noun for a decrease, the opposite of the growth 「繁殖」 describes.

「繁殖」 is for living things breeding and multiplying, as in 「繁殖期」. Use 「増殖」 for cell proliferation, 「生殖」 for biological reproduction, 「増える」/「増やす」 for everyday increases, 「増加」/「増大」 in formal prose, 「減少」 for decreases.

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

Japanese definitions
  1. 生物せいぶつが生うまれて増ふえること。
Kanji in this word
English equivalents
See also

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

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