Dictionary.com
Thesaurus.com

Heimdall

American  
[heym-dahl] / ˈheɪmˌdɑl /
Also Heimdal,

noun

Scandinavian Mythology.
  1. the god of dawn and light.


Heimdall British  
/ ˈheɪmˌdɑːl, ˈheɪmˌdɑːlə /

noun

  1. Norse myth the god of light and the dawn, and the guardian of the rainbow bridge Bifrost

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Heimdall

< Old Norse Heimdallr, equivalent to heim ( r ) home, world + dallr, perhaps cognate with Old English deall bold, renowned

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Not “The Harder They Fall,” but my character in the Marvel world, in the “Thor” films, Heimdall, there’s a sense of symmetry between those two voices.

From New York Times

Of the other gods, only five were important: Balder, Thor, Freyr, Heimdall, and Tyr.

From Literature

Heimdall will blow the Gjallerhorn only once, at the end of all things, at Ragnarok.

From Literature

He previously played the Asgardian gatekeeper and Thor ally Heimdall in the Marvel Cinematic Universe.

From Los Angeles Times

Heimdall hangs out on the Rainbow bridge and only talks to Loki and Thor.

From Salon