増殖|ぞうしょくzoushoku[0]heiban (flat)

1. noun, suru verb, transitive verb, intransitive verbincrease; multiplication; propagation; proliferation

• Synonym増加ぞうかNeutralThe most general word for a rise in number or amount, as in 「人口増加」; 「増殖」 leans toward cells and organisms multiplying by self-replication.
• Synonym増えるふえるNeutralEveryday verb for things becoming more numerous, common in speech, as in 「体重が増える」; 「増殖」 stresses self-replication.
• Synonym増すますNeutralVerb for increasing or intensifying, as in 「勢いを増す」; 「増殖」 is about self-multiplication of living things.
• Synonym繁殖はんしょくNeutralBreeding of animals and plants, as in 「繁殖期」; 「増殖」 leans more toward cells and viruses multiplying.
• Related増大ぞうだいNeutralRefers to quantity or degree growing larger, as in 「負担の増大」; 「増殖」 centers on living things multiplying themselves.
• Related伸長しんちょうWrittenWritten term for growth in length or influence; 「増殖」 focuses on cells and organisms multiplying.
• Related成長せいちょうNeutralGrowth of living things or the economy, as in 「経済成長」; 「増殖」 stresses multiplying in number.
• Related膨大ぼうだいNeutralDescribes a huge quantity, as in 「膨大な資料」; 「増殖」 is about cells and organisms multiplying.
• Related広がりひろがりNeutralThe outward spread or extent of something, as in 「感染の広がり」; 「増殖」 stresses self-replication.
• Related高まりたかまりNeutralNoun for emotions or atmosphere rising, as in 「緊張の高まり」; 「増殖」 is about self-multiplication.
• Related累積るいせきWrittenWritten term for piling up or accumulating, as in 「累積赤字」; 「増殖」 centers on cells and organisms multiplying.
• Related発達はったつNeutralDevelopment or advancement, as in 「技術の発達」; 「増殖」 mainly suggests cells and organisms multiplying in number.
• Related蓄積ちくせきNeutralAccumulating things like knowledge or fatigue, as in 「疲労の蓄積」; 「増殖」 stresses self-replication.
• Related育ちそだちNeutralNoun for growing up or upbringing, as in 「東京育ち」; 「増殖」 is about cells and organisms multiplying.
• Related増進ぞうしんWrittenWritten term for promoting or improving something such as appetite or health, as in 「食欲増進」; 「増殖」 is about self-multiplication.
• Related生殖せいしょくWrittenWritten, academic term for reproduction, sexual or asexual, as in 「生殖器」; 「増殖」 emphasizes the rise in numbers.
• Related拡大かくだいNeutralExpanding in scale or scope, as in 「被害の拡大」; 「増殖」 centers on cells and organisms multiplying.
• Related拡張かくちょうNeutralExtending facilities or territory, as in 「道路拡張」; 「増殖」 is about self-multiplication of living things.
• Related膨張ぼうちょうNeutralSwelling in volume or a sharp rise in numbers, as in 「熱膨張」; 「増殖」 stresses self-replication.
• RelatedのびNeutralNoun for the amount of growth or stretching, as in 「売上の伸び」; 「増殖」 is about self-multiplication.
• Antonym減少げんしょうNeutralAntonym on the increase/decrease axis: a fall in number or amount, as in 「人口減少」.

Use 「増殖」 for cells, viruses and organisms multiplying by self-replication, as in 「細胞増殖」 and 「ウイルスの増殖」. For a general rise in numbers, 「増加」 or 「増える」 is the default; for animals and plants breeding, pick 「繁殖」. Words like 「拡大」「膨張」「成長」 cover expansion, swelling and growth instead, and the opposite of an increase is 「減少」.

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

1. あるものを増まし殖ふやす（殖ふえる）こと。
2. 生物せいぶつの個体こたいや組織そしき、細胞さいぼうなどが殖ふえること。