Who is-Whose | Commonly Confused Words

Who is

/huː ɪz/

A question phrase used to inquire about the identity of a person.

Who's leading the project next quarter?Who's that musician playing the violin?Who is calling at this late hour?

This word has no synonyms

This word has no antonyms

/huːz/

Used to ask or to indicate who something belongs to or is associated with

The devil, whose name was Mephostophilis, bowed courteously and disappeared.Whose is it?' The girl moved back, a little shocked.'Whose dog is that?'

This word has no synonyms

This word has no antonyms

Who is is a contraction, so if you can expand it to who is, you are using it correctly.
Whose shows possession, meaning it indicates who owns something.
If the context involves ownership or belonging, the correct word is likely whose.
Use who is when forming a question or statement about identity or action.
Whose does not break down into two words like who is does.