No, the word big is an adverb and an adjective.
The word 'big' as an adverb to modify a verb is a less common use, for example:
The more common use for 'big' (bigger, biggest) is as an adjective to describe a noun, for example:
Fear is the abstract noun.
Yes, the noun astonishment is an abstract noun, a word for an emotional reaction.
Is undergone an abstract noun
The abstract noun is criticism.
The abstract noun is obligation.
The abstract noun form of the adjective 'big' is bigness.
Fear is the abstract noun.
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.
The abstract noun is obligation.
Friendship has not abstract noun because It is a abstract noun
Abstract noun of hopeless
The abstract noun form is tourism.
The abstract noun for the adjective quick is quickness.