Brynhild vs Brunnhilde

Brynhild and Brunnhilde both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brynhild	Yes	No	No	No
Brunnhilde	Yes	No	No	No

As nouns, Brynhild and Brunnhilde are synonyms defined as:

Brynhild and Brunnhilde: a Valkyrie or a queen in the Nibelungenlied who loved the hero Siegfried; when he deceived her she had him killed and then committed suicide

Other synonyms of Brynhild include Brunhild, Brynhildr.

Brynhild (noun)	Brunnhilde (noun)
a Valkyrie or a queen in the Nibelungenlied who loved the hero Siegfried; when he deceived her she had him killed and then committed suicide	a Valkyrie or a queen in the Nibelungenlied who loved the hero Siegfried; when he deceived her she had him killed and then committed suicide