Simple Definition of idea
: a thought, plan, or suggestion about what to do
: an opinion or belief
: something that you imagine or picture in your mind
Full Definition of idea
2 archaic : a visible representation of a conception : a replica of a pattern
3 a obsolete : an image recalled by memory b : an indefinite or unformed conception c : an entity (as a thought, concept, sensation, or image) actually or potentially present to consciousness
4 : a formulated thought or opinion
5 : whatever is known or supposed about something <a child's idea of time>
6 : the central meaning or chief end of a particular action or situation
7 Christian Science : an image in Mind
Examples of idea
My idea is to study law.
Starting her own business seemed like a good idea at the time, but it turned out badly.
Whose idea was it to leave so early?
My idea was that if we left early we could beat the crowd.
Buying the car was a bad idea.
I have some ideas for redecorating the room.
He has an idea for a movie.
I'm not sure what to do next. Do you have any ideas?
She's always full of new ideas.
It's a good idea to talk to people who have actually been there.
Origin of idea
Middle English, from Latin, from Greek, from idein to see — more at wit
First Known Use: 14th century
Synonym Discussion of idea
IDEA Defined for Kids
Definition of idea
1 : a thought or plan about what to do <Surprising her was a bad idea.>
2 : something imagined or pictured in the mind <I had an idea of what the town was like.>
3 : an understanding of something <I have no idea what you mean.>
4 : a central meaning or purpose <The idea of the game is to keep from getting caught.>
5 : an opinion or belief <What gave you that idea?>
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