notion /ˈnəuʃən/ n. ［c］ 概念，感知： the old notion that the sun moved round the earth 太阳绕着地球转的旧学说 I haven’t the faintest notion of what he means. 我一点都不知道他是什么意思。［考句］ Do you have any notion about what living beings on other planets would be like? 你知道其他星球的人长得什么样吗？