Homonym: Imaginary (Fictional)
"Imaginary" refers to concepts, ideas, or entities that exist only in the mind and do not have a physical presence in reality. This term is often used in various contexts, such as literature, art, and psychology, to describe things that are created through imagination rather than through tangible experiences.
In mathematics, the term "imaginary" is used to describe numbers that can be expressed as a real number multiplied by the imaginary unit i, where i is defined as the square root of -1. Imaginary numbers are essential in complex number theory and have applications in fields like engineering and physics.