No, the word you is not a noun, it's a pronoun, a word that takes the place of a noun in a sentence.
The pronoun you is the second person, which takes the place of the name of the one spoken to; used for singular or plural; used as a subject or an object; for example:
John, you can pick me up at five.
Normally, we don't use both the name of the person and the pronoun unless we are trying to get their attention or there are a number of other people present. Normally, we just use the pronoun:
You and I are invited to the party. You should wear the blue dress. Blue looks so good on you.
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.
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.
The abstract noun for the adjective vacant is vacantness. Another abstract noun form is vacancy.