grow vs fledge

grow and fledge both are verbs.

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

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

grow: come to have or undergo a change of (physical features and attributes)
fledge: grow feathers

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

grow (verb)	fledge (verb)
come to have or undergo a change of (physical features and attributes)	grow feathers
become larger, greater, or bigger; expand or gain	decorate with feathers
cause to grow or develop	feed, care for, and rear young birds for flight
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