imagination
imag.i.na.tion \im-.aj-*-'na--sh*n\ n 1: the act or power of forming a mental image of something not present to t he senses or never before wholly perceived in reality 2a: creative ability 2b: ability to confront and deal with a problem : RESOURCEFULNESS 3a: a creation of the mind; esp : an idealized or poetic creation 3b: fanciful or empty assumption 4: popular or traditional belief or conception mental images of things not before one. IMAGINATION is the most general term and the freest from derogatory connotation; it may apply to the representation either of what is remembered, or of what has never been experienced in its entirety, or of what is actually nonexistent; FANCY applies esp. to the power of inventing the novel and unreal by altering or recombining the elements of reality; FANTASY implies the unrestrained and often extravagant or delusive operation of the fancy SYN syn IMAGINATION, FANCY, FANTASY mean the power to form
Webster's English Dictionary