The Collaborative International Dictionary of English v.0.48:

Senora \Se*[~n]o"ra\, n. [Sp.]
   A Spanish title of courtesy given to a lady; Mrs.; Madam;
   also, a lady.
   [1913 Webster] Senyorita

WordNet (r) 3.0 (2006):

Senora
    n 1: a Spanish title or form of address for a married woman;
         similar to the English `Mrs' or `madam'

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "senora":
   Frau, Fraulein, Miss, Mistress, Mlle, Mme, Mmes, dame, dona, donna,
   lady, madam, madame, mademoiselle, mem-sahib, mesdames, senhora,
   senhorita, signora, signorina, vrouw