from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of a legendary group of heroic Irish warriors of the second and third centuries A.D.
- n. A member of a secret revolutionary organization in the United States and Ireland in the mid-19th century, dedicated to the overthrow of British rule in Ireland.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An Irish nationalist or republican.
- n. A member of the Fenian Brotherhood or the Irish Republican Brotherhood, Irish republican organizations active in the nineteenth and early twentieth centuries.
- n. A Catholic, especially one of Irish ethnicity or descent.
- n. A supporter of Scottish association football club Celtic F.C.
from the GNU version of the Collaborative International Dictionary of English
- n. A member of a secret organization, consisting mainly of Irishmen, having for its aim the overthrow of English rule in Ireland.
- adj. Pertaining to Fenians or to Fenianism.
from The Century Dictionary and Cyclopedia
- n. A modern English form of Irish Fiann, Fianna, a name applied in Irish tradition to the members of certain tribes who formed the militia of the ardrig or king (see ardrigh) of Eire or Erin (the Fianna Eirionn, or champions of Erin).
- n. A member of an association of Irishmen known as the Fenian Brotherhood, founded in New York in 1857, with a view to secure the independence of Ireland.
- Of or belonging to the Fenians of Irish legend: as, the Fenian stories; the Fenian period.
- Of or belonging to the organization called the Fenian Brotherhood: as, a Fenian invasion; a Fenian outrage.
From alteration (influenced by féne, body of freemen under early Irish law) of Irish Gaelic fianna, bands of young warriors, from Old Irish fíanna, pl. of fían.(American Heritage® Dictionary of the English Language, Fourth Edition)
Blend of Old Irish feinne or fianna, plural of fiann ("soldier"), the name of a legendary band of Irish warriors, and Fene or Féni, legendary settlers of Ireland. First attested from 1816. (Wiktionary)