noun

idea

idea, concept, thought, opinion

That's a good idea.

That's a good idea.

I have no idea where he is.

I have no idea where he is.

The idea of freedom is important.

The idea of freedom is important.

((an idea)) a thought or suggestion. That's a good idea.

((the idea of sth.)) the concept of something. The idea of flying fascinates me.

((to have no idea)) to not know at all. I have no idea what you mean.

Synonyms: thought, concept, notion; Antonyms: reality, fact

From Ancient Greek 'idéa' meaning 'form' or 'pattern'. It refers to the mental image of something.

Think of a lightbulb appearing above someone's head when they have a bright 'idea'.

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