whirl vs twirl

whirl and twirl both are nouns.

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

As nouns, whirl and twirl are synonyms defined as:

Other synonyms of whirl include spin, twist, twisting.

As verbs, whirl and twirl are synonyms defined as:

Other synonyms of whirl include swirl, twiddle.

As verbs, whirl and twirl are synonyms defined as:

Other synonyms of whirl include birl, spin.

whirl (noun)	twirl (noun)
a usually brief attempt	the act of rotating rapidly
the act of rotating rapidly	a sharp bend in a line produced when a line having a loop is pulled tight
confused movement
the shape of something rotating rapidly

whirl (verb)	twirl (verb)
flow in a circular current, of liquids	turn in a twisting or spinning motion
turn in a twisting or spinning motion	cause to spin
cause to spin
fly around
revolve quickly and repeatedly around one's own axis