1. The person or persons that; the one that
   "I'm the one who bought it" 
2. What or which person or persons?
   "who gave you the book?"

1. A United Nations agency to coordinate international health activities and to help governments improve health services
   - World Health Organization, World Health Organisation [Brit]

Type of: UN agency, United Nations agency

Encyclopedia: WHO

• Matricaria oreades
• Matricaria recutita
• Matricaria tchihatchewii
• matricentric
• matricidal
• matricide
• matriculate
• matriculation
• matrikin
• matrilineage
• matrilineal
• matrilineal kin
• matrilineal sib
• matrilineally
• matrilinear
• matrimonial
• matrimonial law
• matrimony
• matrimony vine
• matrisib
• matrix
• matrix addition
• matrix algebra
• matrix inversion
• matrix multiplication