This is the 3213th most frequent Korean word.
공약을
"공약을" means "a pledge" or "a promise."
In this sentence, '공약을' is used as the object of the verb 발표하다 (to announce), referring to the specific promises made during an election campaign.
그 후보는 선거 공약을 발표했다.
The candidate announced an election promise.
Here, '공약을' is the object of the verb 이행하다 (to fulfill), describing the action of fulfilling previously made promises.
정부는 공약을 이행하기 위해 노력하고 있다.
The government is working hard to fulfill its promises.
In this sentence, '공약을' serves as the object of the verb 분석하다 (to analyze), indicating the process of examining promises made by politicians.