Nouns do not describe; adjectives describe nouns. The word 'vary' is not a noun, it's a verb. Words that describe (modify) verbs are adverbs.
Example adverbs that might be used for the verb vary:
The abstract noun for the verb to vary are variation and the gerund, varying.
Related abstract nouns are variant and variety.
What is abstract noun ?
variable
Varies
Various
Is cheer an abstract noun or a concrete 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.
Is cheer an abstract noun or a concrete 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.
Friendship has not abstract noun because It is a abstract noun
The abstract noun is obligation.
Abstract noun of hopeless
The abstract noun form is tourism.
The abstract noun for the adjective quick is quickness.
The noun childhood is a singular, common, abstract, compound noun; a word for the time of being a child.