This is the 6267th most frequent Japanese word.
ケネディ
"Kennedy" (a surname or name, often referring to John F. Kennedy).
In this sentence, ケネディ refers to a specific individual's name as a proper noun.
ジョン・F・ケネディはアメリカの第35代大統領でした。
John F. Kennedy was the 35th President of the United States.
Here, ケネディ is part of a facility name, indicating relevance to the individual it honors.
ケネディ空港はニューヨークにあります。
Kennedy Airport is located in New York.
In this case, ケネディ denotes direct possession, attributing an action or property to the individual named Kennedy.