Existing only in imagination or fancy; not real; fancied; visionary; ideal.

not based on fact; dubious; "the falsehood about some fanciful secret treaties"- F.D.Roosevelt; "a small child's imaginary friends"; "her imagined fame"; "to create a notional world for oneself"

An imaginary, or social imaginary is the set of values, institutions, laws, and symbols common to a particular social group and the corresponding society. Jacques Lacan introduced the term in 1936 and continued to use it throughout his work as one of the three orders in his psychoanalytic theory. The imaginary as a lacanian term entails connotations of illusion, seduction and fascination but is by no means unnecessary or inconsequential (as something that is illusory).

Imaginary is a song by the alternative rock band Evanescence. It is one of three songs that has stayed in the bands history since its EPs toward Fallen (The other two being My Immortal and Whisper). It is featured on their releases Evanescence EP, Origin, Fallen, and Anywhere but Home.

a necessary precondition, guaranteeing a positive outcome in practice

The component of a signal perpendicular to the real signal. [ Chapter 8

An imaginary expression or quantity.