(interrogative pronoun) What person or people; which person or people (used in a direct or indirect question).
(relative pronoun) The person or people that.
Substantiivit
A person under discussion; a question of which person.
Esimerkit
Who is that? (direct question)
I don't know who it is. (indirect question)
It was a nice man who helped us.
A wham-bam caper flick, efficiently directed by Roger Donaldson, that fancifully revisits the mysterious whos and speculative hows of a 1971 London bank heist.