dance step vs sashay

dance step and sashay both are nouns.

Word	Noun	Adjective	Verb	Adverb
dance step	Yes	No	No	No
sashay	Yes	No	Yes	No

As nouns, sashay is a hyponym of dance step; that is, sashay is a word with a more specific, narrower meaning than dance step:

Other hyponyms of dance step include moonwalk, chasse, glissade.

dance step (noun)	sashay (noun)
a sequence of foot movements that make up a particular dance	(ballet) quick gliding steps with one foot always leading
	a square dance figure; partners circle each other taking sideways steps
	a journey taken for pleasure

dance step (verb)	sashay (verb)
	to walk with a lofty proud gait, often in an attempt to impress others
	move sideways
	perform a chasse step, in ballet