From The Collaborative International Dictionary of English v.0.44 [gcide]:
ketchup \ketch"up\, noun [Probably of East Indian origin, because it was originally a kind of East Indian pickles. Cf. also Malay k[e^]chap fish sauce. --MW10.] A pureed table sauce made predominantly from tomatoes, flavored with onions, sugar, salt and spices; called also {tomato ketchup}. The term is also applied to pureed sauces containing mushrooms, walnuts, etc., being called in such cases {mushroom ketchup}, {walnut ketchup}, etc. [Written also {catsup} and {catchup}.] [PJC]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Catchup \Catch"up\, Catsup \Cat"sup\, noun [Probably of East Indian origin, because it was originally a kind of East Indian pickles. Cf. also Malay k[e^]chap fish sauce. --MW10.] A pureed table sauce made predominantly from tomatoes, flavored with onions, sugar, salt and spices; called also {tomato ketchup}. The term is also applied to pureed sauces containing mushrooms, walnuts, etc., being called in such cases {mushroom ketchup}, {walnut ketchup}, etc. [Written also {ketchup}.]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Catsup \Cat"sup\ (k[a^]t"s[u^]p), noun Same as {Catchup}, and {Ketchup}.
From WordNet (r) 2.0 [wn]:
noun
1: thick spicy sauce made from tomatoes [syn: {ketchup}, {cetchup}, {tomato ketchup}]
Define.com is a registered nonprofit corporation dedicated solely to the global public interest and the advancement of humanity. It belongs to all of us who have a desire to promote electronic democracy, science, creativity, imagination, reason, critical thinking, peace, race and gender equality, civil rights, equal access to education, personal liberty, free speech, animal rights, compassionate and nonviolent parenting, social and economic justice, global monetary reform, Secular Humanism, cognitive liberty and a permanent cessation of The War on Drugs.
Let's see what we can do if we put our heads together.
0