Illiteracy.
The abstract noun for the adjective tolerant is tolerance.
The word 'speech' is an abstract noun as a word for the ability to speak.
Abstract.
The abstract noun for "discuss" is "discussion."
The abstract noun for "loud" is loudness.
The word 'illiteracy' is a noun, a singular, common, abstract noun. Illiterate is the adjective form; there is no verb form.
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.
Abstract noun of hopeless
Friendship has not abstract noun because It is a abstract noun
Illiterate is usually an adjective, and in this sense does not have a plural form. The noun for illiterate is illiteracy, for which the plural can be illiteracies, but it is awkward. Illiterate is sometimes used as a noun to describe an illiterate person, in which case the plural would be illiterates, e.g. as in the insult, "You are a bunch of illiterates!"
The abstract noun form is tourism.
The abstract noun for the adjective vacant is vacantness. Another abstract noun form is vacancy.