1. Employment that is temporary, irregular, or without a long-term contract, often without benefits or job security
She took on casual work at the restaurant during the summer holidays.
Ela aceitou um trabalho ocasional no restaurante durante as férias de verão.
2. Work performed on an as-needed basis, typically paid by the hour or by the task
Many students engage in casual work to support their studies.
Muitos estudantes realizam trabalho ocasional para sustentar seus estudos.