This is the 9603rd most frequent Japanese word.
羽田空港
Haneda Airport.
The word 羽田空港 serves as a proper noun and is used as the subject in the sentence, indicating a specific location.
羽田空港は日本の主要な空港の一つです。
Haneda Airport is one of Japan's major airports.
The word 羽田空港 is used as the object of the verb 行きました (went), indicating a destination.
私は昨日羽田空港に行きました。
I went to Haneda Airport yesterday.
The word 羽田空港 is used as the location where an action has occurred, expressed with the particle で (at/in).