Who
WordNet
noun
(1) A United Nations agency to coordinate international health activities and to help governments improve health services
WiktionaryText
Etymology
from , from .
Pronoun
(Note that who is usually used instead of whom, especially in informal contexts.)
- What person or people; which person or people (used in a direct or indirect question).
- Who is that? (direct question)
- I don't know who it is. (indirect question)
- The person or people that.
- It was a nice man who helped us.