What does 開発 mean?
開発 is a Japanese noun meaning “development, exploitation” in English. It can also be translated as “exploitation (of resources)” depending on context. It is written as 開発 in kanji, かいはつ in hiragana, and kaihatsu in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
エンドユーザーの視野にたった商品開発が必須。
Our new product development efforts must be done from the end user's viewpoint.