Bhikshu, in Hinduism and Buddhism, refers to a wandering mendicant, monk, or holy man who lives on alms. However, there are a number of synonyms for this term that are used in different contexts and cultures. In Hinduism, this term is often used interchangeably with the word "sannyasi" which means a renunciant, someone who has abandoned worldly possessions and desires for spiritual pursuits. Other synonyms for Bhikshu are "baba," "fakir," and "sadhu" which are commonly used in India to describe holy men, mystics and ascetics who lead a simple and austere life, devoted to spiritual practices for enlightenment. Overall, these terms convey the idea of humble devotion and detachment from material possessions.