specialise vs narrow down

specialise and narrow down both are verbs.

Word	Noun	Adjective	Verb	Adverb
specialise	No	No	Yes	No
narrow down	No	No	Yes	No

As verbs, specialise and narrow down are synonyms defined as:

specialise and narrow down: become more focused on an area of activity or field of study

Other synonyms of specialise include narrow, specialize.

specialise (verb)	narrow down (verb)
become more focused on an area of activity or field of study	become more focused on an area of activity or field of study
suit to a special purpose	define clearly
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