revolve vs twiddle

revolve is not a noun while twiddle is a noun.

Word	Noun	Adjective	Verb	Adverb
revolve	No	No	Yes	No
twiddle	Yes	No	Yes	No

As verbs, twiddle is a hyponym of revolve; that is, twiddle is a word with a more specific, narrower meaning than revolve:

Other hyponyms of revolve include drive in, screw, screw, wheel, wheel around, gyrate, reel, spin, spin around, whirl, swirl, twirl, whirl.

revolve (noun)	twiddle (noun)
	a series of small (usually idle) twists or turns

revolve (verb)	twiddle (verb)
turn on or around an axis or a center	manipulate, as in a nervous or unconscious manner
move in an orbit	turn in a twisting or spinning motion
cause to move by turning over or in a circular manner of as if on an axis