a United Nations agency to coordinate international health activities and to help governments improve health services
A person under discussion; a question of which person.
What person or people; which person or people; asks for the identity of someone. (used in a direct or indirect question)
Honorific alternative letter-case form of who, sometimes used when referring to God or another important figure who is understood from context.
whose
Initialism of World Health Organization.
The television show Doctor Who.
The word "who" comes from Old English, originally meaning "which person." It evolved through various spellings in Middle English before settling into its modern form due to changes in how the initial consonant sounds were pronounced.