4777 概念: general idea, concept: The Internet has changed the concept of information. 7483 発想: conception; expression: His conception has changed. 7663 先入観: bias; preconception: Do not judge things based on preconceptions. 7933 理念: concept; idea: That company's concept is clear. 7937 観念: concept; idea: Those two people have very different concepts of time.