Meaning & use
who
Used to ask which person or people are meant, or to introduce information about a person already mentioned.
See it in a sentence
Who left the door unlocked when everyone went out this morning?
The woman who answered the phone said the office was closed until Monday.
A note on using this word
Use 'who' as the subject of a clause and 'whom' as the object, though in casual speech 'who' is used for both.
Words with a similar meaning
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