idea
US /aɪˈdiː.ə/
UK /aɪˈdiː.ə/
1.
a thought or suggestion as to a possible course of action
:
•
That's a great idea!
•
Do you have any ideas for dinner?
2.
a mental impression or concept
:
•
I have no idea what you're talking about.
•
The general idea is to reduce waste.