turning vs diversion

turning and diversion both are nouns.

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

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

turning (noun)	diversion (noun)
the act of changing or reversing the direction of the course	an activity that diverts or amuses or stimulates
act of changing in practice or custom	a turning aside (of your course or attention or concern)
the activity of shaping something on a lathe	an attack calculated to draw enemy defense away from the point of the principal attack
the end-product created by shaping something on a lathe
a movement in a new direction
a shaving created when something is produced by turning it on a lathe