This is the 20th most frequent Korean word.
지난해
"지난해" means "last year" in English.
The word '지난해' is used here to indicate the specific time period of the previous year.
지난해에는 눈이 많이 내렸습니다.
Last year, there was a lot of snow.
In this sentence, '지난해' serves to set the time context for when the action of receiving the gift occurred.
지난해에 받은 선물을 아직도 잘 간직하고 있어요.
I still keep the gift I received last year well.
Here, '지난해' is used as a reference point in time from which the action of starting continued.