IPA: /ˈhoʊm.lɛs.nəs/
KK: /ˈhoʊmˌlɛs.nəs/
The condition of not having a home or a place to live.
Many cities are working to address the issue of homelessness.
Homelessness is formed from "home" (from Old English *ham*, meaning dwelling or residence) and "-less" (meaning without), combined with the suffix "-ness" (indicating a state or condition). The word describes the state of being without a home or dwelling.
Think of 'home' as a place where one lives, and '-less' means without, so homelessness refers to the condition of being without a home.