Ithunn vs Idun

Ithunn and Idun both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ithunn	Yes	No	No	No
Idun	Yes	No	No	No

As nouns, Ithunn and Idun are synonyms defined as:

Ithunn and Idun: (Norse mythology) goddess of spring and wife of Bragi; guarded the apples that kept the gods eternally young

Ithunn (noun)	Idun (noun)
(Norse mythology) goddess of spring and wife of Bragi; guarded the apples that kept the gods eternally young	(Norse mythology) goddess of spring and wife of Bragi; guarded the apples that kept the gods eternally young