What is the meaning of Ketchup?

Ellipsis of tomato ketchup. A tomato-vinegar-based sauce, sometimes containing spices, onion or garlic, and (especially in the US) sweeteners.

Such a sauce more generally (not necessarily based on tomatoes, but with mushrooms, fish, etc.). This is the older meaning.

To cover with ketchup.

"Ketchup", Oxford English Dictionary (online edition, 2020).

Is There a Difference Between Ketchup and Catsup?”, Slate, Aisha Harris, April 22, 2013

ketchup

ketchup

ketchup

ketchup

Alternative spelling of keczup

ketchup (tomato-vinegar based sauce)

ketchup

Alternative form of kečap

ketchup

ketchup

ketchup

Source: wiktionary.org