who
🇺🇸
/huː/
🇬🇧
/huː/
used to ask about a person's name or identity
Who is the person who called you yesterday?
used to point out a specific person or people
I know the man who lives next door, who is very friendly.
used to add details about a person
My teacher, who has been teaching for 20 years, is the one who helped me most.