1. Use a general term for their living situation:
* The orphans: This emphasizes their shared status as children without parents.
* The children: This is the most basic and neutral description.
* The siblings: This highlights their family connection.
* The foster children: If they are currently in foster care.
2. Focus on their resourcefulness and independence:
* The resourceful children: This emphasizes their ability to survive on their own.
* The self-sufficient children: This focuses on their independence.
* The pioneers: This implies they are forging their own path.
3. Describe their personality:
* The curious children: This highlights their inquisitiveness and love of adventure.
* The brave children: This emphasizes their courage and willingness to face challenges.
4. Consider the context:
* The runaway children: If the story focuses on their escape from a difficult situation.
* The children in the boxcar: This directly references their unique living space.
Ultimately, the best common noun depends on the specific focus of the story or description.