turning vs rotation

turning and rotation both are nouns.

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

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

Other hyponyms of turning include reversal, turn around, swerve, yaw, gyration, revolution, coming back, return, volution.

turning (noun)	rotation (noun)
the act of changing or reversing the direction of the course	the act of rotating as if on an axis
act of changing in practice or custom	a planned recurrent sequence (of crops or personnel etc.)
the activity of shaping something on a lathe	a single complete turn (axial or orbital)
the end-product created by shaping something on a lathe	(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
a movement in a new direction
a shaving created when something is produced by turning it on a lathe