Within the Vedic pantheon, the gods, to be a rule, have lots of names, Every single of which carries the essence of some noble trait or attribute or symbolizes among the deeds on the deity. Hanuman also seems under a variety of names: बिकट रूप धरि लङ्क जरावा ॥९॥ https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s