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shamrock

American  
[sham-rok] / ˈʃæm rɒk /

noun

  • shamrocks
    plural
  1. any of several trifoliate plants, as the wood sorrel, Oxalis acetosella, or a small, pink-flowered clover, Trifolium repens minus, but especially Trifolium procumbens, a small, yellow-flowered clover: a symbol of Ireland.


shamrock British  
/ ˈʃæmˌrɒk /

noun

  1. a plant having leaves divided into three leaflets, variously identified as the wood sorrel, red clover, white clover, and black medick: the national emblem of Ireland

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms


Etymology

Origin of shamrock

1565–75; < Irish seamróg, equivalent to seamair clover + -óg diminutive suffix


Compare meaning

How does shamrock compare to similar and commonly confused words? Explore the most common comparisons:


Explanation

A shamrock is a three-leafed green clover that's used to symbolize Ireland. Go all out for St. Patrick's Day this year — decorate your whole house with shamrocks! A clover must have exactly three leaves to be a shamrock, and some people believe only certain clover varieties qualify. Since at least 1675, Catholics have associated the shamrock with Saint Patrick, who famously used it to represent the Holy Trinity. It wasn't until the 18th century that it shifted from representing Ireland's patron saint to Ireland itself. The shamrock even shows up on some British coins, alongside the English rose and Scottish thistle.

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Vocabulary lists containing shamrock

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“My first tattoo,” she wrote, “might just be a huge shamrock in the middle of my forehead.”

From Los Angeles Times ● May 30, 2025

Catherine, dressed in a bottle-green and percher hat, presented the traditional sprigs of shamrock to officers, guardsmen and mascot Seamus, the Irish wolfhound, at the regiment's annual parade at Wellington Barracks.

From BBC ● Mar. 17, 2025

But such information would only have puzzled Trump and complicated the shamrock bonhomie, and Vance — a Roman Catholic convert, after all — beamed in silence from the sofa.

From Salon ● Mar. 16, 2025

He announced his intention to play for Notre Dame on social media, writing “A dream come true. Go Irish,” with a shamrock image at the end.

From Seattle Times ● Dec. 12, 2023

Harry was with them; he would, of course, be supporting Bulgaria, and he wondered vaguely why he had a large green shamrock pinned to his chest.

From "Harry Potter And The Goblet Of Fire" by J. K. Rowling

When the Irish visit the White House each year, they traditionally bring a bowl of shamrocks.

From The Wall Street Journal ● Mar. 11, 2026

JD Vance, who attended the same meeting, didn't miss his own chance to pay homage to the Irish prime minister, donning a pair of cream-coloured socks that were - fittingly - adorned with green shamrocks.

From BBC ● Mar. 14, 2025

“Everything between Ireland and the United States runs deep,” Biden said on St. Patrick’s Day in 2021, wearing a green tie and carrying a fistful of shamrocks in his coat pocket.

From Washington Post ● Apr. 12, 2023

On the menu will be corned beef and cabbage and green cookies shaped like shamrocks.

From Seattle Times ● Mar. 15, 2023

You could buy Valentines in November at Lee Chong’s, shamrocks, hatchets and paper cherry trees in August.

From "Cannery Row" by John Steinbeck

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