Breathtaking isn't a noun at all; it's an adjective. Examples:
breathtaking
Yes, the noun 'excitement' is an abstract noun (also called an idea noun); a word for an emotion.
The noun Christmas is a proper, abstract noun (sometimes called an idea noun); a word for a concept.
The noun 'fear' is an abstract noun; a word for an emotion; a word for a thing.An abstract noun is sometimes referred to as an 'idea noun'.
breathtaking as one word.
An idea that is a noun: idea
The possessive form of the singular noun spaceship is spaceship's.example: The spaceship's size was breathtaking.
The verb "are" is used with the plural noun "scenery." For example, "The sceneries are breathtaking."
breathtaking
Her beauty was breathtaking.
Hopeful is an adjective, not a noun. The noun form, hopefulness is an abstract noun (if that's what an 'idea noun' means).
The plural form of the noun "idea" is "ideas."
Yes, the noun 'excitement' is an abstract noun (also called an idea noun); a word for an emotion.
The noun Christmas is a proper, abstract noun (sometimes called an idea noun); a word for a concept.
No, the term 'quirky idea' is two words; quirky is an adjective and idea is a noun.
Yes, it is a noun.
The word 'idea' is a common noun; the word 'you' is a pronoun.