In psychology, illusory correlation is the phenomenon of perceiving a relationship between variables (typically people, events, or behaviors) even when no such relationship exists.

Illusory contours or subjective contours are visual illusions that evoke the perception of an edge without a luminance or color change across that edge.

Promise that cannot be enforced.

Perceived image without physical form.

In social psychology, illusory superiority is a cognitive bias wherein people overestimate their own qualities and abilities compared to others.

The illusory truth effect (also known as the illusion of truth effect, validity effect, truth effect, or the reiteration effect) is the tendency to believe false information to be correct after repeated exposure.

The term illusory motion, also known as motion illusion or "apparent motion", is an optical illusion in which a static image appears to be moving due to the cognitive effects of interacting color contrasts, object shapes, and position.

a subtype of palinopsia, a visual disturbance defined as the persistence or recurrence of a visual image after the stimulus has been removed.

the fourth studio album by American emo band the World Is a Beautiful Place & I Am No Longer Afraid to Die, released October 8, 2021, by Epitaph Records.