tsaritsa vs czarina

tsaritsa and czarina both are nouns.

Word	Noun	Adjective	Verb	Adverb
tsaritsa	Yes	No	No	No
czarina	Yes	No	No	No

As nouns, tsaritsa and czarina are synonyms defined as:

Other synonyms of tsaritsa include czaritza, tsarina, tzarina.

tsaritsa (noun)	czarina (noun)
the wife or widow of a czar	the wife or widow of a czar