Outcast and Street urchin

Outcast noun - One who is cast out or rejected by society.

Street urchin and outcast are semantically related. In some cases you can use "Street urchin" instead a noun "Outcast".

Street urchin noun - A child who spends most of his time in the streets especially in slum areas.

Outcast and street urchin are semantically related. You can use "Outcast" instead a noun phrase "Street urchin".