Homelessness is well-defined by HUD and the definition has been the same for decades. The report discussed here almost certainly missed numerous homeless people

Homelessness is well-defined by HUD and the definition has been the same for decades. The report discussed here almost certainly missed numerous homeless people because it is based on the point-in-time count, where local agencies go out in the field for one day and try to find homeless people, which overlooks some classes of homeless.