외국인 등록증이 · 외국인 등록증을
alien registration card, residence card
Example
한국에 90일 넘게 살면 외국인 등록증이 필요해요.
If you live in Korea for more than 90 days, you need a residence card.
Word parts
외 outside+국 country+인 person+등 put up+록 record+증 certificate
Literally 'foreigner registration certificate'.
Related words