A plan, conception, or idea for realizing something; a scheme or vision often referring to an early-stage plan or concept.
会社は新製品の構想を発表した。
The company announced its concept for a new product.
作家は小説の構想を練るのに数年かけた。
The writer spent years developing the concept for the novel.
その構想は実現に向けてさらに検討が必要だ。
That concept needs further study before it can be realized.