pak choi vs bok choi

pak choi and bok choi both are nouns.

Word	Noun	Adjective	Verb	Adverb
pak choi	Yes	No	No	No
bok choi	Yes	No	No	No

As nouns, pak choi and bok choi are synonyms defined as:

pak choi and bok choi: Asiatic plant grown for its cluster of edible white stalks with dark green leaves

Other synonyms of pak choi include bok choy, Brassica rapa chinensis, Chinese white cabbage, pakchoi.

pak choi (noun)	bok choi (noun)
Asiatic plant grown for its cluster of edible white stalks with dark green leaves	elongated head of dark green leaves on thick white stalks
	Asiatic plant grown for its cluster of edible white stalks with dark green leaves