This is the 14358th most frequent Korean word.
무기가
"무기가" means "weapon" (subject form).
The word '무기가' is the subject in this sentence, referring to 'the weapon' being discussed.
무기가 강력하다.
The weapon is powerful.
Here, '무기가' is the subject, indicating the specific weapon that is required.
누군가 무기가 필요해.
Someone needs a weapon.
In this sentence, '무기가' again serves as the subject, emphasizing the role of the weapon in the described action.