This is the 10072nd most frequent Korean word.
공항에서
"At the airport."
In this sentence, '공항에서' is used to indicate the location where the action of meeting occurred, namely, 'at the airport'.
저는 공항에서 친구를 만났어요.
I met a friend at the airport.
Here, '공항에서' specifies the location where the waiting action is taking place, 'at the airport'.
공항에서 비행기를 기다리고 있어요.
I am waiting for a plane at the airport.
In this sentence, '공항에서' indicates the starting point or origin of the departure action, 'from the airport'.