sole vs half sole

sole and half sole both are nouns.

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

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

Other hyponyms of sole include innersole, insole, outsole.

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

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

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