The jötunn (anglicized jotunn or jotun, plural jötnar; /ˈjoʊtən/, /ˈjoʊtʊn/, or /ˈjɔːtʊn/; Old Norse jǫtunn /ˈjɔtunː/, Icelandic jötunn [ˈjœːtʏn]; often glossed as giant or ) are a mythological race that live in Jötunheimr, one of the nine worlds of Norse cosmology. They were banished there by the Æsir who refused them entry to their world, Asgard. The Jötnar can be seen throughout Norse mythology. They frequently interact with the Æsir, as well as the Vanir. They are usually in opposition to, or in competition with them, but also interact with them in a non-hostile manner. Some Jötnar even intermarry with the Æsir and Vanir, and many are named as parents or grandparents of Æsir such as Thor and Odin. This very complex relationship between these two comparable races develops most notably in the Prose Edda and the Poetic Edda, ultimately making it difficult to distinguish them from the more familiar Norse gods.