Brigit Nilsson vs Birgit Nilsson

Brigit Nilsson and Birgit Nilsson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brigit Nilsson	Yes	No	No	No
Birgit Nilsson	Yes	No	No	No

As nouns, Brigit Nilsson and Birgit Nilsson are synonyms defined as:

Brigit Nilsson and Birgit Nilsson: Swedish operatic soprano who played Wagnerian roles (born in 1918)

Other synonyms of Brigit Nilsson include Marta Brigit Nilsson, Nilsson.

Brigit Nilsson (noun)	Birgit Nilsson (noun)
Swedish operatic soprano who played Wagnerian roles (born in 1918)	Swedish operatic soprano who played Wagnerian roles (born in 1918)