This is the 13189th most frequent Korean word.
둘만
"둘만" means "just the two (of us/them)."
둘만 is used to emphasize that the walk was shared exclusively between two people, excluding anyone else.
우리는 둘만 해변에서 산책했어요.
We only had a walk on the beach just the two of us.
둘만 is used to describe ownership or association unique to two individuals regarding the secret place.
작년에 둘만의 비밀 장소를 발견했어요.
Last year, we found a secret place just for the two of us.
둘만 is referenced to express a desire for a private and exclusive setting shared by two individuals.