nightmare

Chimera is a related term of nightmare.

As nouns the difference between chimera and nightmare

is that chimera is chimera while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

Vision is a related term of nightmare.

As nouns the difference between vision and nightmare

is that vision is ghost while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

Illusion is a related term of nightmare.

As nouns the difference between illusion and nightmare

is that illusion is while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

In figuratively terms the difference between mirage and nightmare

is that mirage is an illusion while nightmare is any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.

As nouns the difference between mirage and nightmare

is that mirage is an optical phenomenon in which light is refracted through a layer of hot air close to the ground, giving the appearance of there being refuge in the distance while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

As a verb mirage

is to cause to appear as or like a mirage.

Aberration is a related term of nightmare.

As nouns the difference between aberration and nightmare

is that aberration is aberration (deviation) while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

Fantasy is a related term of nightmare.

As nouns the difference between fantasy and nightmare

is that fantasy is that which comes from one's imagination while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

As a verb fantasy

is (literary|psychoanalysis) to fantasize (about).

Apparition is a related term of nightmare.

As nouns the difference between apparition and nightmare

is that apparition is an act of becoming visible; appearance; visibility while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

As nouns the difference between daydreams and nightmare

is that daydreams is while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.