bok choi vs pak choi

bok choi and pak choi both are nouns.

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

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

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

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

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