nightmare

As nouns the difference between taxonomy and nightmare

is that taxonomy is the science or the technique used to make a classification 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 noun 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 noun 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 an adverb midnightmare is

(temporal location) during a nightmare.

As nouns the difference between nightmare and morningmare

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

As a noun 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 an adjective nightmarelike is

resembling or characteristic of a nightmare; nightmarish.

Nightmare is a see also of nightdream.

As nouns the difference between nightmare and nightdream

is that nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep while nightdream is a dream that is experienced at night, sometimes as distinguished from a daydream.