What did bhikkhus mean? 

Meaning and Role:

1. Literal Meaning: Bhikkhu means "beggar" or "one who lives on alms," reflecting the practice of relying on the generosity of others for sustenance.
2. Spiritual Role: Bhikkhus follow a strict code of monastic discipline (known as the Vinaya), meditate, study Buddhist scriptures, and guide laypeople in their spiritual journey.
3. Community: They form part of the Sangha, the community of monks and nuns, which is one of the three pillars of Buddhism (Buddha, Dhamma, Sangha).