→ ضَمير صِلَة يَعود إلى العاقِل الفاعل بِمَعْنى: الذي، ا
who
→ ضَمير يأتي في بدايَة جُمْلَة الصِّلَة غَيْر المُحَدِّ
Additional Definitions (WordNet):
NOUN (1)
1. a United Nations agency to coordinate international health activities and to help governments improve health services; [syn: World Health Organization, WHO]