mandioc vs mandioca

mandioc and mandioca both are nouns.

Word	Noun	Adjective	Verb	Adverb
mandioc	Yes	No	No	No
mandioca	Yes	No	No	No

As nouns, mandioc and mandioca are synonyms defined as:

mandioc and mandioca: cassava with long tuberous edible roots and soft brittle stems; used especially to make cassiri (an intoxicating drink) and tapioca

Other synonyms of mandioc include bitter cassava, gari, Manihot esculenta, Manihot utilissima, manioc, tapioca plant.

mandioc (noun)	mandioca (noun)
cassava with long tuberous edible roots and soft brittle stems; used especially to make cassiri (an intoxicating drink) and tapioca	cassava with long tuberous edible roots and soft brittle stems; used especially to make cassiri (an intoxicating drink) and tapioca