mendicant
noun [ C ] formal uk/ˈmen.dɪ.kənt/ us/ˈmen.dɪ.kənt/
乞丐;（尤指）托钵僧
someone, especially a member of a religious group, who lives by asking people they do not know for money
She abandoned her job and her career, and lived as a homeless mendicant on the streets of Philadelphia.