boot maker vs cobbler

boot maker and cobbler both are nouns.

Word	Noun	Adjective	Verb	Adverb
boot maker	Yes	No	No	No
cobbler	Yes	No	No	No

As nouns, cobbler is a hypernym of boot maker; that is, cobbler is a word with a broader meaning than boot maker:

Other hypernyms of boot maker include shoemaker.

boot maker (noun)	cobbler (noun)
a maker of boots	a pie made of fruit with rich biscuit dough usually only on top of the fruit
	tall sweetened iced drink of wine or liquor with fruit
	a person who makes or repairs shoes