rotation vs turnout

rotation and turnout both are nouns.

Word	Noun	Adjective	Verb	Adverb
rotation	Yes	No	No	No
turnout	Yes	No	No	No

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

rotation (noun)	turnout (noun)
the act of rotating as if on an axis	attendance for a particular event or purpose (as to vote in an election)
a planned recurrent sequence (of crops or personnel etc.)	(ballet) the outward rotation of a dancer's leg from the hip
a single complete turn (axial or orbital)	what is produced in a given time period
(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin	a part of a road that has been widened to allow cars to pass or park
	a set of clothing (with accessories)
	a short stretch of railroad track used to store rolling stock or enable trains on the same line to pass
	the group that gathers together for a particular occasion