Homelessness means people who do not have a place to stay. The word "homelessness" also includes people who sleep in
In academic articles and government reports, these people are called "homeless people". You may hear different words to describe homelessness and homeless people. Some of these words apply to people who might not be homeless. Sometimes they are based upon
There are tough questions in sorting out homeless people even when trying to create programs and services to help them. Homeless counts are required by the government agencies that deal with homelessness. In the USA, for instance, the Housing and Urban Development (HUD) agency requires a homeless "enumeration" count every two years. They classify "homeless" in a careful way and that way is very influential and a lot of other agencies and church groups copy it.