noun

ideas

ideas, thoughts, concepts

She has lots of good ideas.

She has lots of good ideas.

What's the big idea?

What's the big idea?

((an idea)) ((about/on sth.)) a thought about a subject. I have an idea about the project.

((an idea)) ((for sth.)) a suggestion for a purpose. That's a good idea for a party.

Synonyms: thoughts, concepts, notions, suggestions

From Greek 'idea' meaning 'form, pattern'. The original sense was a 'form' seen in the mind's eye.

Think of a light bulb turning on above your head – that's an 'idea'!

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