swordbill Syllabification: (sword·bill)Pronunciation: /ˈsôrdˌbil/ (also sword-billed hummingbird)Definition of swordbill noun a mainly green hummingbird with a very long bill, found in northern South America. Ensifera ensifera, family Trochilidae swordbill in other Oxford dictionaries Definition of swordbill in the British & World English dictionary