grow vs pod

grow is not a noun while pod is a noun.

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

As verbs, pod is a hyponym of grow; that is, pod is a word with a more specific, narrower meaning than grow:

grow: come to have or undergo a change of (physical features and attributes)
pod: produce pods, of plants

Other hyponyms of grow include feather, fledge, regrow, spring, sprout, stock, stool, tiller, leaf, teethe, pupate, get up, work up, cut.

grow (noun)	pod (noun)
	a detachable container of fuel on an airplane
	a group of aquatic mammals
	a several-seeded dehiscent fruit as e.g. of a leguminous plant
	the vessel that contains the seeds of a plant (not the seeds themselves)

grow (verb)	pod (verb)
come to have or undergo a change of (physical features and attributes)	produce pods, of plants
become larger, greater, or bigger; expand or gain	take something out of its shell or pod
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