Yes, "nightmare" is a common noun because it refers to a general type of experience or feeling that anyone can have.
"Nightmare" is a common noun, as it refers to a general concept or type of experience rather than a specific name. It describes a disturbing dream, and it is not capitalized unless it starts a sentence. Common nouns like "nightmare" can be further categorized as a concrete noun because it represents a tangible experience that can be felt or recalled.
A noun, of the abstract type.
No, it is not a verb. Nightmare is a noun (bad dream).
Yes, the word 'nightmare' is a noun, a word for a frightening dream; a frightening or horrible experience; a word for a thing.
Nightmare is a noun. Nightmarish is the adjective form. Nightmarishly is the adverb form.
Common noun
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
Most definitely a common noun.
Camel is a common noun.
Th word tail is a common noun because the first letter of a proper noun is capitalized.