modify vs specialise

modify and specialise both are verbs.

Word	Noun	Adjective	Verb	Adverb
modify	No	No	Yes	No
specialise	No	No	Yes	No

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

modify (verb)	specialise (verb)
make less severe or harsh or extreme	become more focused on an area of activity or field of study
add a modifier to a constituent	suit to a special purpose
cause to change; make different; cause a transformation	evolve so as to lead to a new species or develop in a way most suited to the environment
	be specific about
	devote oneself to a special area of work