Huː People I Pronoun Bre Woman Letter Phoning

• who is that woman?
• i wonder who that letter was from.
• who are you phoning?
• who's the money for?

who

1. used in questions to ask about the name, identity or function of one or more people
• Who is that woman?
• I wonder who that letter was from.
• Who are you phoning?
• Who's the money for?
2. used to show which person or people you mean
• The people who called yesterday want to buy the house.
• The people (who) we met in France have sent us a card.
3. used to give more information about somebody
• Mrs Smith, who has a lot of teaching experience at junior level, will be joining the school in September.
• And then Mary, who we had been talking about earlier, walked in.
4. used to ask what right or authority somebody has to do something
• Who are you to tell me I can't park here?
5. people’s names, jobs, status, etc.
• see also who’s who
  https://www.oxfordlearnersdictionaries.com/definition/english/who-s-who_1
• You'll soon find out who's who in the office.

Word Origin

• Old English hwā, of Germanic origin; related to Dutch wie and German wer.