pakchoi vs bok choy

pakchoi and bok choy both are nouns.

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

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

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

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

pakchoi (noun)	bok choy (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