ideas

noun

1. An abstract archetype of a given thing, compared to which real-life examples are seen as imperfect approximations; pure essence, as opposed to actual examples.
2. The conception of someone or something as representing a perfect example; an ideal.
3. The form or shape of something; a quintessential aspect or characteristic.
4. An image of an object that is formed in the mind or recalled by the memory.“The mere idea of you is enough to excite me.”