whirl vs birling

whirl and birling both are nouns.

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

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

Other hyponyms of whirl include pirouette, logrolling.

whirl (noun)	birling (noun)
a usually brief attempt	rotating a log rapidly in the water (as a competitive sport)
the act of rotating rapidly
confused movement
the shape of something rotating rapidly

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