Added 9 October 2026 leonardo noun Categories: PeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. More about leonardo at Wordnik → Where our words come from → Italian painter and sculptor and engineer and scientist and architect; the most versatile genius of the Italian Renaissance (1452-1519). Related Words: leonardpolymathinventorpainterartistgeniusscientistanatomistflorentineinnovator Back to today's word