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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 fayn] / 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

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Etymology

Origin of Sinn Fein

From Irish sinn f éin “we ourselves”

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Example Sentences

See Examples For:

Sinn Fein Sinn Féin

McDonald said Sinn Fein would assist police if its members' participation in the protest came under investigation.

From Barron's ● Oct. 5, 2026

Sinn Fein MLA Órlaithí Flynn has been contacted by families who want answers and action.

From BBC ● Aug. 11, 2026

Linda Dillon is a Sinn Fein MLA who lives in the Clonoe area and is calling for the issue to be resolved.

From BBC ● Jun. 28, 2025

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

I have therefore hesitated about telling just how some members of the Sinn Fein Party treated our men.

From The Victory At Sea by Burton J. Hendrick

The DUP and Ulster Unionists share power with Sinn Féin in a four-party devolved government alongside the Alliance Party.

From BBC ● Oct. 6, 2026

Now a father-of-two himself, and married to Sinn Féin councillor Catherine Nelson, he said he did not want any child "worrying or concerned" and said it was like it was "happening all over again".

From BBC ● Sep. 29, 2026

The Sinn Féin MLA posted on X, external about a new one-off electricity bill reduction announced on Thursday, which Sir Chris Bryant, reposted, external saying: "I'm really glad that the UK government is funding this."

From BBC ● Sep. 18, 2026

Sinn Féin councillor Brian Barney Harte said a wall was damaged at the side of a house in Strabane during the pursuit.

From BBC ● Sep. 12, 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 Ernest Augustus Boyd

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