This is the 10054th most frequent Korean word.
공짜로
"For free."
The word "공짜로" here means 'for free', indicating that the coffee was received without charge.
나는 오늘 공짜로 커피를 받았어요.
I received coffee for free today.
Here, "공짜로" refers to the fact that no payment is required for the admission fee.
입장료는 공짜로 제공됩니다.
The admission fee is provided for free.
In this sentence, "공짜로" conveys the idea of performing work or a task without receiving compensation.