Senora vs Señora

Senora and Señora both are nouns.

Word	Noun	Adjective	Verb	Adverb
Senora	Yes	No	No	No
Señora	Yes	No	No	No

As nouns, Senora and Señora are synonyms defined as:

Senora and Señora: a Spanish title or form of address for a married woman; similar to the English `Mrs' or `madam'

Senora (noun)	Señora (noun)
a Spanish title or form of address for a married woman; similar to the English `Mrs' or `madam'	a Spanish title or form of address for a married woman; similar to the English `Mrs' or `madam'