whirlpool vs purl

whirlpool and purl both are nouns.

Word	Noun	Adjective	Verb	Adverb
whirlpool	Yes	No	Yes	No
purl	Yes	No	Yes	No

As verbs, whirlpool and purl are synonyms defined as:

Other synonyms of whirlpool include eddy, swirl, whirl.

whirlpool (noun)	purl (noun)
a powerful circular current of water (usually the result of conflicting tides)	a basic knitting stitch made by putting the needle through the front of the stitch from the righthand side
	gold or silver wire thread

whirlpool (verb)	purl (verb)
flow in a circular current, of liquids	make a murmuring sound
	embroider with gold or silver thread
	edge or border with gold or silver embroidery
	knit with a purl stitch
	flow in a circular current, of liquids