This is the 3918th most frequent Japanese word.
ケチャップ
Ketchup.
In this sentence, 'ケチャップ' refers to the condiment used as an ingredient in cooking.
ケチャップを料理に使います。
I use ketchup in cooking.
Here, 'ケチャップ' is used to describe the topping applied on food.
このハンバーガーにはケチャップがかかっています。
This hamburger has ketchup on it.
In this case, 'ケチャップ' is used to describe the packaged product stored in a bottle.