pakchoi vs bok choi

pakchoi and bok choi both are nouns.

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

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

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

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

pakchoi (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