The word "All-American" as a noun is a proper noun referring to a person, an athlete. So it is a concrete noun.
A proper noun for athlete is Jackie Robinson.
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.