Bifrost

American

[biv-rost] / ˈbɪv rɒst /

noun

Scandinavian Mythology.

the rainbow bridge of the gods from Asgard to earth.

Bifrost British

/ ˈbiːfrɒst, ˈbɪvrɒst /

noun

Norse myth the rainbow bridge of the gods from their realm Asgard to earth

"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 Bifrost

< Old Norse Bifrǫst, equivalent to bif- (root of bifa, cognate with Old English bifian to shake) + rǫst, cognate with Old High German rasta stretch of road

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.

In Denmark, the geological institute has no overall data, but the Bifrost project, led by TotalEnergies, estimates it could store 335 million tonnes of CO2.

From Barron's • Dec. 22, 2025

The thematic Bifrost joining 2011's "Thor" and the thunder god's new movie examines how a person's capacity to love and be loved can make them better and more whole people.

From Salon • Jul. 15, 2022

Experts suggest it was unlikely Cooper survived the high-risk parachute jump, but that’s because experts didn’t know Cooper was sucked up through the Bifrost to Asgard as soon as he exited the plane.

From Slate • Jun. 9, 2021

Asgardians have the ability to travel between the realms with a bridge known as the Bifrost.

From Los Angeles Times • Jan. 29, 2021

The Bifrost track was another stand-alone simulation, one of several hundred track designs stored on my console’s hard drive.

From "Ready Player One: A Novel" by Ernest Cline

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023