whose /huːz/determiner 3pronoun 1 determiner3 •asking or showing which person or people something is related to, for example by belonging to them, used before a nounWhose (wallet) is this?We should buy a house. ~ With whose money? •Of whom, belonging to whom.This is the man whose dog caused the accident.Venus, whose sister is Serena, won the latest championship. •Of which, belonging to which.We saw several houses whose roofs were falling off. pronoun1 •That or those of whom or belonging to whom.Several people have lost their suitcases. Whose have you found?He asked whose the umbrella was.