twirl vs twiddle

twirl and twiddle both are nouns.

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

As verbs, twirl and twiddle are synonyms defined as:

Other synonyms of twirl include swirl, whirl.

twirl (noun)	twiddle (noun)
the act of rotating rapidly	a series of small (usually idle) twists or turns
a sharp bend in a line produced when a line having a loop is pulled tight

twirl (verb)	twiddle (verb)
turn in a twisting or spinning motion	manipulate, as in a nervous or unconscious manner
cause to spin	turn in a twisting or spinning motion