Aside the United Kingdom of course, the official names of the nations which have the British monarch as head of state don't have any mention of their status of Kingdoms. Especially Canada and Australia, who officially are the Commonwealths of Canada and Australia, but shouldn't be more right to call them Federated Kingdom of Canada, Federated Kingdom of Australia, or something like this? There is a particular reason why those countries don't present themselves as monarchies even if they are de jure? And de facto, despite we tend to forget this, also because as I just said, they don't show officially to be kingdoms?