CLUELESS
Yes, idea is a word. You had a good idea to come and ask that question here.
idea, thoughtepiphany
They had a good idea for the project.
you will get a good idea
A great idea could be a brainstorm, or an inspiration.
Idea
"Plan."
Idea
i haven't the foggiest idea............
Apyphony.
I have no idea. Google it?