It's an adjective, meaning expensive; involving or causing loss, damage, suffering etc. 😁
No, "costly" is not an abstract noun; it is an adjective that describes something that has a high cost or price. Abstract nouns refer to concepts or ideas that cannot be physically touched or seen, such as love, happiness, or freedom. In contrast, "costly" relates to a tangible attribute of an object or situation.
Yes, costly is an adjective. E.g. It was a costly mistake. (One that was expensive to fix, or that led to other bad consequences.)
Yes, the noun 'folly' is an abstract noun as a word for the quality of being foolish; a foolish action or idea; a costly, unwise investment or expense; a word for a concept.The noun 'folly' is a concrete noun as a word for a whimsical or extravagant and often useless structure or building; a word for a physical thing.
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Is undergone an abstract noun
Concrete noun
The abstract noun is criticism.
The noun 'hopefulness' is an abstract noun, a word for an emotion.
Abstract noun of hopeless
The abstract noun is obligation.
Friendship has not abstract noun because It is a abstract noun
The abstract noun form is tourism.