Definitions
1.DeterminerOf whom, belonging to whom; which person's or people's."Whose (wallet) is this?; We should buy a house. ~ With whose money?; For whose benefit are you acting.?"
2.DeterminerOf whom, belonging to whom."This is the man whose dog caused the accident.; Venus, whose sister is Serena, won the latest championship.; I dedicate this award to my parents, without whose help I wouldn't have made it this far.; The victim was a youngster, both of whose eyes were missing.; It is Marconi whose name is associated with the development of radio."
3.DeterminerOf which, belonging to which."We saw several houses whose roofs were falling off."
4.PronounThat or those of whom or belonging to whom."Several people have lost their suitcases. Whose have you found?; He asked whose the umbrella was."
5.PronounThat or those of whom or belonging to whom."This car is blocking the way, but Mr Smith, whose it is, will be here shortly."
6.ContractionMisspelling of who's.