age vs grow

age is a noun but grow is not a noun.

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

age (noun)	grow (noun)
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

age (verb)	grow (verb)
grow old or older	come to have or undergo a change of (physical features and attributes)
begin to seem older; get older	become larger, greater, or bigger; expand or gain
make older	cause to grow or develop
	increase in size by natural process
	pass into a condition gradually, take on a specific property or attribute; become
	develop and reach maturity; undergo maturation
	grow emotionally or mature
	become attached by or as if by the process of growth
	cultivate by growing, often involving improvements by means of agricultural techniques
	come into existence; take on form or shape