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• Sinn Fein
  Sinn Fein

  noun

  a political organization in Ireland, founded about 1905, advocating the complete political separation from Great Britain of a unified Ireland.
• Sinn Féin
  Sinn Féin

  noun

  an Irish republican political movement founded about 1905 and linked to the revolutionary Irish Republican Army: divided into a Provisional and an Official movement since a similar split in the IRA in late 1969

Sinn Fein

American  

[shin feyn] / ˈʃɪn ˈfeɪn /

noun

1. a political organization in Ireland, founded about 1905, advocating the complete political separation from Great Britain of a unified Ireland.

2. a member of this organization.

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Sinn Féin British  

/ ˈʃɪn ˈfeːn /

noun

1. an Irish republican political movement founded about 1905 and linked to the revolutionary Irish Republican Army: divided into a Provisional and an Official movement since a similar split in the IRA in late 1969

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Sinn Fein Cultural  

1. An Irish political party (in Gaelic it means “Ourselves Alone”) that has long combatted Great Britain's influence in Ireland and sought the unification of Northern Ireland with the Irish republic in the south; generally considered the political portion of the Irish Republican Army. One wing of it has engaged in terrorism.

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Other Word Forms

Derived Forms

• Sinn Feinism
  noun
• Sinn Féiner
  noun
• Sinn Feiner
  noun
• Sinn Féinism
  noun

Etymology

Origin of Sinn Fein

From Irish sinn f éin “we ourselves”

Example Sentences

She also directly responded to the criticism levelled at her from Sinn Féin & Alliance MPs.

From BBC • Jun. 7, 2026

Sinn Féin councillor Emma McGinley, who brought the relevant motion before the council, said she had been contacted about the issue by "parents, young people and even classroom assistants and teachers".

From BBC • May 16, 2026

Sinn Féin MLA Órlaithí Flynn appealed for anyone with information to come forward to police.

From BBC • May 16, 2026

Sinn Féin MP Maskey said the coroner's findings vindicate families who have long maintained their loved ones were innocent and shot without justification.

From BBC • May 1, 2026

It is doubtful, however, if the Sinn Féin policy could have continued, after the war had broken out, to escape the hostile attention of England.

From The Sacred Egoism of Sinn Féin by Boyd, Ernest Augustus