Added 9 October 2026 theresa noun Categories: PeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. More about theresa at Wordnik → Where our words come from → Indian nun and missionary in the Roman Catholic Church (born of Albanian parents in what is now Macedonia); dedicated to helping the poor in India (1910-1997). Related Words: teresamrsempressinfantatheresetheresiaterezateresitateressatessyteresiatheressa Back to today's word