showmanship vs accomplishment

showmanship and accomplishment both are nouns.

Word	Noun	Adjective	Verb	Adverb
showmanship	Yes	No	No	No
accomplishment	Yes	No	No	No

As nouns, accomplishment is a hypernym of showmanship; that is, accomplishment is a word with a broader meaning than showmanship:

showmanship: the ability to present something (especially theatrical shows) in an attractive manner
accomplishment: an ability that has been acquired by training

Other hypernyms of showmanship include acquirement, acquisition, attainment, skill.

showmanship (noun)	accomplishment (noun)
the ability to present something (especially theatrical shows) in an attractive manner	the action of accomplishing something
	an ability that has been acquired by training