This is the 18015th most frequent Korean word.
수산물을
"수산물을" means "seafood."
The word '수산물을' in this sentence is used in its role as the object of the verb '먹다' (to eat), indicating the seafood (수산물) that will be consumed.
오늘 저녁에 맛있는 수산물을 먹을 거예요.
I will eat delicious seafood tonight.
Here, '수산물을' is the object of the verb '생산하다' (to produce), referring to the seafood produced in the region.
이 지역은 신선한 수산물을 생산하는 곳으로 유명합니다.
This area is famous for producing fresh seafood.
In this instance, '수산물을' serves as the object of '요리하다' (to cook), indicating seafood as the entity being prepared or cooked.