허가가 · 허가를
permission, permit, license
Example
이곳에서 사진을 찍으려면 허가가 필요해요.
You need permission to take pictures here.
Word parts
허 allow+가 approve
Literally 'allowing and approving.'
Good to know
허가 is official permission from an authority; for permission from parents or friends, use 허락.