The crossword solutions for the term CALLAS refer to Maria Callas, a Greek-American opera singer who is widely regarded as one of the greatest sopranos of all time. The solutions ARIA (4 letters), ARI (3 letters), DIVA (4 letters), AIDA (4 letters), MARIAS (6 letters), TOSCA (5 letters), NORMA (5 letters), and ONASSIS (7 letters) are all titles of operas in which Callas performed. She was particularly renowned for her interpretations of the title roles in NORMA, Tosca, and AIDA. Her marriage to Aristotle Onassis further cemented her place in history.