pe-tsai vs celery cabbage

pe-tsai and celery cabbage both are nouns.

Word	Noun	Adjective	Verb	Adverb
pe-tsai	Yes	No	No	No
celery cabbage	Yes	No	No	No

As nouns, pe-tsai and celery cabbage are synonyms defined as:

pe-tsai and celery cabbage: plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia

Other synonyms of pe-tsai include Brassica rapa pekinensis, Chinese cabbage, napa.

pe-tsai (noun)	celery cabbage (noun)
plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia	elongated head of crisp celery-like stalks and light green leaves
	plant with an elongated head of broad stalked leaves resembling celery; used as a vegetable in east Asia