1. Employment or economic activity that is not officially registered, regulated, or protected by labor laws; work performed without formal contracts or social security benefits
Many people in developing countries rely on informal work to support their families.
Muitas pessoas em países em desenvolvimento dependem do trabalho informal para sustentar suas famílias.
2. Self-employment or freelance activities conducted outside the formal economy
She earns money through informal work as a freelance translator.
Ela ganha dinheiro através do trabalho informal como tradutora autônoma.