Is age an abstract noun

Answer 1

Yes, the noun 'age' is an abstract noun, a word for the length of time that a person has lived or a thing has existed; a word for a distinct period of history; a word for a concept.

The word 'age' is also a verb: age, ages, aging, aged.

Answer 2

The noun 'elderly' is a concrete noun, a word for older people considered as a group, a physical group.

The noun form of the adjective 'elderly' is elderliness, an abstract noun as a word for a state of being.

The word 'elderly' is the adjective form of the noun elder, a concrete noun as a word for a person.

Answer 3

yes

Answer 4

Yes