This is the 160th most frequent Japanese word.
寿司
Sushi: A Japanese dish consisting of vinegared rice combined with seafood, vegetables, or other ingredients.
寿司 is used as the object of desire here, showing its common usage to refer to the Japanese dish.
寿司が食べたいです。
I want to eat sushi.
寿司 serves as the subject of the sentence, showcasing it as a specific dish being discussed or described.
この寿司は今日作られました。
This sushi was made today.
寿司 is used in a general sense, referring to the type of food as the topic of the statement.