Idea

a faint idea of

An idea rushed into my mind

An idea that is not dangerous is unworthy of being called an idea at all.

Can you give us an idea of what it’s like?

Do you think it might be a good idea to ...?

Don’t run away with the idea!

Get that idea out of your head!

Have you an idea where she could be?

Have you any idea where she could be?

He had no idea what he was in for

He wasn’t any too pleased about her idea

How did you get that idea?

I can get that idea out of my headgut.

I don’t fancy the idea, but I’ll have to do it

I dropped him a broad hint, but he didn’t catch on to the idea