Definition of Vishnu in US English:

Vishnu

proper noun

Hinduism
  • A god, originally a minor Vedic god, now regarded by his worshipers as the supreme deity and savior, by others as the preserver of the cosmos in a triad with Brahma and Shiva. Vishnu is considered by Hindus to have had nine earthly incarnations or avatars, including Rama, Krishna, and the historical Buddha; the tenth avatar will herald the end of the world.

Origin

From Sanskrit Viṣṇu.

Pronunciation

Vishnu

/ˈvɪʃnu//ˈviSHno͞o/