Pronunciation: (ī-dē'u, ī-dēu'), [key]
1. any conception existing in the mind as a result of mental understanding, awareness, or activity.
2. a thought, conception, or notion: That is an excellent idea.
3. an impression: He gave me a general idea of how he plans to run the department.
4. an opinion, view, or belief: His ideas on raising children are certainly strange.
5. a plan of action; an intention: the idea of becoming an engineer.
6. a groundless supposition; fantasy.
7. Philos.
a. a concept developed by the mind.
b. a conception of what is desirable or ought to be; ideal.
c. (cap.) Platonism.Also called form. an archetype or pattern of which the individual objects in any natural class are imperfect copies and from which they derive their being.
d. Kantianism.See idea of pure reason.
8. Music.a theme, phrase, or figure.
9. Obs.
a. a likeness.
b. a mental image.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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