noun
idea
eye-DEE-uh/aɪˈdiːə/
A thought formed in the mind.
The designer forms an idea for a chair that folds.

Etymology
Greek idea meant a form or the look of something. The sense shifted toward a mental image or picture, including a conception of something to be done.
In context
Freud wanted the enlightenment idea of measuring. He looked at uh the problem of mental illness and anxieties and neurosis and thought well if we can only throw light on the darkness we can understand what's going on
More examples
- That is a clever idea.
- Do you have any idea where he went?
- The idea took time to develop.
Forms
idea · ideas
Similar words
- notion
- Often a less developed or less definite thought.