1. used to ask which person something belongs to
Usage: interrogative
2. used to show which person or thing something belongs to or is connected with
Usage: relative

Examples

• Whose car is parked outside?
• Whose turn is it to wash the dishes?
• The woman whose dog was lost called the police.
• This is the house whose roof was damaged in the storm.
• The student whose essay won first place will receive a scholarship.
• Whose idea was it to have pizza for dinner?