"idea" 是英文中表示 "主意" 的常用词。它来自拉丁语 "idea"，意思是 "形象、概念、想法"。
例句：
I have an idea for a new business. (我有一个新生意的主意。)
Can you give me some ideas for decorating the pving room? (你能给我一些装饰客厅的主意吗？)
His idea of success is different from mine. (他对成功的看法和我不同。)
需要注意的是，在英语中 "idea" 也可以指 "提议"。
例句：
I have an idea, let's go to the beach this weekend. (我有个主意，咱们这个周末去海滩吧。)