들어가다

들어가다 (deul-eo-ga-da) means “to enter,” “to go in,” or “to go inside.” It describes movement into a place or situation.

방에 들어가세요. (bang-e deul-eo-ga-se-yo.) – Please go into the room.
그는 회사에 들어갔어요. (geu-neun hoe-sa-e deul-eo-ga-sseo-yo.) – He joined the company.
문을 열고 들어갔어요. (mun-eul yeol-go deul-eo-ga-sseo-yo.) – I opened the door and went in.
대학에 들어가기가 어려워요. (dae-hak-e deul-eo-ga-gi-ga eo-ryeo-wo-yo.) – Getting into university is difficult.
비밀번호를 입력해야 들어갈 수 있어요. (bi-mil-beon-ho-reul ip-ryeok-hae-ya deul-eo-gal su it-seo-yo.) – You need to enter the password to go in.

This verb is often used in contexts involving movement into a physical space or even metaphorical situations like joining a group or institution.