pen·​in·​su·​la | \ pə-ˈnin(t)-s(ə-)lə, -shə-lə \

Definition of peninsula

: a portion of land nearly surrounded by water and connected with a larger body by an isthmus also : a piece of land jutting out into the water whether with or without a well-defined isthmus the Italian peninsula

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Other Words from peninsula

peninsular \ pə-​ˈnin(t)-​s(ə-​)lər , -​shə-​lər \ adjective

Examples of peninsula in a Sentence

They built their house on a narrow peninsula. the peninsula is constantly buffeted by storms

Recent Examples on the Web

The Pentagon is planning to scale back annual military exercises in South Korea designed to simulate war on the Korean peninsula. Kyle Mizokami, Popular Mechanics, "Pentagon Scales Back Joint U.S./South Korean Military Exercises," 26 Nov. 2018 President Trump and North Korean leader Kim Jong Un just signed an agreement calling for denuclearization on the Korean peninsula. Andrew Harnik And Matthew Lee, USA TODAY, "Mike Pompeo seeks clarity in denuclearization talks with North Korea," 7 July 2018 The park officials say the goats are non-native and harm plants unique to the peninsula (science that is questioned by some detractors). Evan Bush, The Seattle Times, "‘Cute little cotton-ball herd’: Orphaned mountain goat kids released at wildlife park," 13 Nov. 2018 Warren was born in 1741 in Roxbury, Mass., at the time a small town connected to the Boston peninsula by a narrow, mile-long strip of land known as the Boston Neck. Gerald J. Russello, WSJ, "‘Founding Martyr’ Review: The Hero on Bunker Hill," 30 Sep. 2018 Multimillion-dollar classics, obscure-but-not-forgotten supercars, and legendary race cars make their way to the peninsula to bask in each other's reflected glory. Jonathan M. Gitlin, Ars Technica, "Infiniti looks to an all-electric future with the Prototype 10 concept," 23 Aug. 2018 As someone who spoke of his intent to be remembered for bringing peace to the peninsula, Moon recognizes that the South is forever under the North's gaze. Jamie Tarabay, CNN, "How Trump and Kim made it to 'hello'," 9 June 2018 The peninsula is the proud haven to four lighthouses worth exploring. Amy Aumick,, "Explore Florida's Gulf County: One of the state's best beaches," 7 May 2018 In 2014 Russian troops seized the Crimean peninsula and intervened on behalf of rebels in eastern Ukraine, an undeclared war that reportedly killed thousands. Kyle Mizokami, Popular Mechanics, "Russia Seizes Three Ukrainian Warships in Border Incident," 26 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'peninsula.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of peninsula

circa 1552, in the meaning defined above

History and Etymology for peninsula

Latin paeninsula, from paene almost + insula island

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Statistics for peninsula

Last Updated

19 Jan 2019

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Time Traveler for peninsula

The first known use of peninsula was circa 1552

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More Definitions for peninsula



English Language Learners Definition of peninsula

: a piece of land that is almost entirely surrounded by water and is attached to a larger land area


pen·​in·​su·​la | \ pə-ˈnin-sə-lə \

Kids Definition of peninsula

: a piece of land extending out into a body of water

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Comments on peninsula

What made you want to look up peninsula? Please tell us where you read or heard it (including the quote, if possible).


tremendous in size, volume, or degree

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