polish vs shoe polish

polish and shoe polish both are nouns.

Word	Noun	Adjective	Verb	Adverb
polish	Yes	No	Yes	No
shoe polish	Yes	No	No	No

As nouns, shoe polish is a hyponym of polish; that is, shoe polish is a word with a more specific, narrower meaning than polish:

polish: a preparation used in polishing
shoe polish: a substance used to produce a shiny protective surface on footwear

Other hyponyms of polish include blacking, Simoniz.

polish (noun)	shoe polish (noun)
the property of being smooth and shiny	a substance used to produce a shiny protective surface on footwear
a highly developed state of perfection; having a flawless or impeccable quality
a preparation used in polishing

polish (verb)	shoe polish (verb)
bring to a highly developed, finished, or refined state
improve or perfect by pruning or polishing
make (a surface) shine