開発|かいはつkaihatsu[0]heiban (flat)
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- noun, suru verb, transitive verbdevelopment; cultivation; application
- noun, suru verb, transitive verbexploitation (of resources)
Conjugation
| Dictionary form | 開発する(かいはつする) |
|---|---|
| Polite (masu) | 開発します(かいはつします) |
| Negative (nai) | 開発しない(かいはつしない) |
| polite (masen) | 開発しません(かいはつしません) |
| classical zu / nu | 開発せず・開発せぬ(かいはつせず・かいはつせぬ) |
| Past (ta) | 開発した(かいはつした) |
| polite (mashita) | 開発しました(かいはつしました) |
| Past negative (nakatta) | 開発しなかった(かいはつしなかった) |
| polite (masen deshita) | 開発しませんでした(かいはつしませんでした) |
| Te form | 開発して(かいはつして) |
| Potential | 開発できる(かいはつできる) |
| Passive | 開発される(かいはつされる) |
| Causative | 開発させる(かいはつさせる) |
| Causative passive | 開発させられる(かいはつさせられる) |
| Conditional (ba) | 開発すれば(かいはつすれば) |
| tara | 開発したら(かいはつしたら) |
| Volitional | 開発しよう(かいはつしよう) |
| polite (mashou) | 開発しましょう(かいはつしましょう) |
| Imperative | 開発しろ(かいはつしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym開拓かいたくNeutralFor reclaiming wasteland or opening up new markets; stresses breaking into the unknown, while 「開発」 focuses on developing land, resources, or new products.
- Related振興しんこうWrittenFormal word for promoting the growth of industry, academia, or culture; 「開発」 is about newly developing land, resources, or products.
- Related発展はってんNeutralDescribes something growing and advancing to a higher stage; stresses the growth process, while 「開発」 is deliberate human development.
- Related発達はったつNeutralCovers physical and mental growth or the gradual advance of technology and transport — the thing itself becoming advanced; 「開発」 is the act of developing.
- Related展開てんかいNeutralMeans unfolding or spreading out — how a situation progresses or a business is rolled out; 「開発」 means developing land, resources, or new products.
- Antonym保全ほぜんWrittenFormal word for preserving things as they are, as in 「環境保全」; it stands opposite 「開発」, which alters nature and land.
- Antonym保護ほごNeutralProtection, as in 「自然保護」; in matters of nature and the environment it opposes 「開発」 and its exploitation.
Use 「開発」 for developing land or resources and for new product R&D, as in 「新製品開発」. Choose 「開拓」 for opening up wilderness or new markets, 「発展」 for growth, 「発達」 for progress of body, mind, or technology, 「展開」 for unfolding or rollout, and 「保護」 for protection.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


