half sole vs sole

half sole and sole both are nouns.

Word	Noun	Adjective	Verb	Adverb
half sole	Yes	No	No	No
sole	Yes	Yes	Yes	No

As nouns, sole is a hypernym of half sole; that is, sole is a word with a broader meaning than half sole:

half sole (noun)	sole (noun)
shoe sole extending from the shank to the toe	right-eyed flatfish; many are valued as food; most common in warm seas especially European
	the underside of footwear or a golf club
	the underside of the foot
	lean flesh of any of several flatfish

half sole (adjective)	sole (adjective)
	being the only one; single and isolated from others
	not divided or shared with others

half sole (verb)	sole (verb)
	put a new sole on