witloof vs Belgian endive

witloof and Belgian endive both are nouns.

Word	Noun	Adjective	Verb	Adverb
witloof	Yes	No	No	No
Belgian endive	Yes	No	No	No

As nouns, witloof and Belgian endive are synonyms defined as:

witloof and Belgian endive: young broad-leaved endive plant deprived of light to form a narrow whitish head

Other synonyms of witloof include French endive.

witloof (noun)	Belgian endive (noun)
young broad-leaved endive plant deprived of light to form a narrow whitish head	young broad-leaved endive plant deprived of light to form a narrow whitish head
widely cultivated herb with leaves valued as salad green; either curly serrated leaves or broad flat ones that are usually blanched