age vs Elizabethan era

age and Elizabethan era both are nouns.

Word	Noun	Adjective	Verb	Adverb
age	Yes	No	Yes	No
Elizabethan era	Yes	No	No	No

age (noun)	Elizabethan era (noun)
how long something has existed	a period in British history during the reign of Elizabeth I in the 16th century; an age marked by literary achievement and domestic prosperity
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