tomato ketchup vs cetchup

tomato ketchup and cetchup both are nouns.

Word	Noun	Adjective	Verb	Adverb
tomato ketchup	Yes	No	No	No
cetchup	Yes	No	No	No

As nouns, tomato ketchup and cetchup are synonyms defined as:

Other synonyms of tomato ketchup include catsup, ketchup.

tomato ketchup (noun)	cetchup (noun)
thick spicy sauce made from tomatoes	thick spicy sauce made from tomatoes