voting age vs age

voting age and age both are nouns.

Word	Noun	Adjective	Verb	Adverb
voting age	Yes	No	No	No
age	Yes	No	Yes	No

As nouns, age is a hypernym of voting age; that is, age is a word with a broader meaning than voting age:

voting age: the age at which a person is old enough to vote in public elections
age: a time of life (usually defined in years) at which some particular qualification or power arises

Other hypernyms of voting age include eld.

voting age (noun)	age (noun)
the age at which a person is old enough to vote in public elections	how long something has existed
	a time of life (usually defined in years) at which some particular qualification or power arises
	a late time of life
	an era of history having some distinctive feature
	a prolonged period of time