Illusion and Optical illusion

Illusion noun - A conception or image created by the imagination and having no objective reality.

Optical illusion and illusion are semantically related in false belief topic. In some cases you can use "Optical illusion" instead a noun "Illusion".

Nearby Words: illusory, illusive, illusionist, illusively

Optical illusion noun - An optical phenomenon that results in a false or deceptive visual impression.

Illusion and optical illusion are semantically related in trick on the eyes topic. You can use "Illusion" instead a noun phrase "Optical illusion".