showmanship vs attainment

showmanship and attainment both are nouns.

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

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

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

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

showmanship (noun)	attainment (noun)
the ability to present something (especially theatrical shows) in an attractive manner	the act of achieving an aim
	arrival at a new stage
	an ability that has been acquired by training