cobbler vs boot maker

cobbler and boot maker both are nouns.

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

As nouns, boot maker is a hyponym of cobbler; that is, boot maker is a word with a more specific, narrower meaning than cobbler:

Other hyponyms of cobbler include bootmaker.

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