This is the 1699th most frequent Japanese word.
おにぎり
A Japanese rice ball typically wrapped in seaweed.
Here, "おにぎり" (onigiri) is used as the subject of the sentence, referring to the rice ball as a cultural item.
おにぎりは日本の伝統的な軽食です。
Onigiri is a traditional Japanese snack.
In this sentence, "おにぎり" (onigiri) is the object of the verb "食べました" (ate), indicating it was consumed.
ランチにおにぎりを食べました。
I ate onigiri for lunch.
Here, "おにぎり" (onigiri) is the object of the verb "作る" (to make), focusing on the action of preparing the rice ball.