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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

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

Etymology

Origin of Sinn Fein

From Irish sinn f éin “we ourselves”

Example Sentences

See Examples For:

Sinn Fein Sinn Féin

First Minister Michelle O'Neill and Sinn Fein president Mary Lou McDonald were among those who supported the Brown family outside court.

From BBC ● May 2, 2025

The DUP agreed to return to power-sharing with the Irish nationalist party Sinn Fein earlier this year following a series of assurances about Northern Ireland’s constitutional position within the United Kingdom.

From Seattle Times ● Mar. 29, 2024

But he agreed to talk to Gerry Adams, the head of the group’s political wing, Sinn Fein, even though the two were widely reported to be deeply suspicious of each other’s motives.

From New York Times ● Feb. 9, 2024

The attack was condemned across all political parties, including the main opposition Sinn Fein.

From Reuters ● Nov. 24, 2023

A militant during the Suffrage campaign, In the War she adopted the cause of Sinn Fein, And, according to credible witness, was seen In the thick of the fighting at Easter, '16.

From Punch, or the London Charivari, Vol. 158, 1920-04-25 by Seaman, Owen, Sir

Sinn Féin MP Paul Maskey, who represents west Belfast, said the "people of Colin deserve better".

From BBC ● Jul. 19, 2026

Sinn Féin assembly member Danny Baker said the "main thoroughfare was shut down by large groups of young people determined to cause chaos and destruction".

From BBC ● Jul. 19, 2026

In answer to a question from the Sinn Féin MLA Pat Sheehan, White said she felt support "all comes down to money".

From BBC ● Jun. 3, 2026

A Sinn Féin spokesperson said the party "does not hold any information in relation to MLA modes of transport".

From BBC ● Jun. 3, 2026

Naturally, such conditions have in no wise modified the splendid isolation of Sinn Féin, since they have rendered free intercommunication between Ireland and the outside world impossible.

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