(psychiatry) A false or exaggerated and sustained belief that is maintained with much less than delusional intensity (i.e., the individual is able to acknowledge the possibility that the ideas may not be true). The belief is accompanied by a strong emotional response, that take priority over all other mental activity.

(philosophy) In Hegelianism, the spiritual principle of which the reality is the expression.

The false belief that random occurrences have a special connection to oneself.

prediction market

(art) A form of art based on small individual ideas rather than generic aesthetic, material and disciplinary concerns.

Idea behind a business, central to the generation of revenue.

An idée fixe, an obsession.

(business) A dinner at which traders meet to propose investment ideas.

plural of idea dinner

To understand the main points.