peninsula

noun

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

: 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

peninsular

pə-ˈnin(t)-s(ə-)lər 

-shə-lər

adjective

Synonyms

• arm
• cape
• foreland
• headland
• ness
• point
• promontory
• spit

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

Together with Dirk Hartog Island, this remote peninsula makes up Shark Bay, or Gutharraguda in the local language, a UNESCO World Heritage site 500 miles north of Perth in Western Australia. —Keith Drew, AFAR Media, 16 Jan. 2025

Now, 10 years after its capture, the peninsula has turned into one massive military base. —David Vetter, Forbes, 30 Dec. 2024

But there were no major battlefield breakthroughs, and one of the biggest goals of the Ukrainian military (splitting Russian troops on the Crimean peninsula from troops in the Donbas, the east of Ukraine) did not come to pass. —Bryan Walsh, Vox, 30 Dec. 2024

The discovery follows recent discoveries of a human skull and bones, two legs and a femur at various locations along the peninsula. —Russ Mitchell, Los Angeles Times, 29 Dec. 2024

Word History

Etymology

Latin paeninsula, from paene almost + insula island

First Known Use

circa 1552, in the meaning defined above

Kids Definition

peninsula

noun

pen·​in·​su·​la pə-ˈnin(t)-s(ə-)lə  -ˈnin-chə-lə 

: a piece of land nearly surrounded by water or sticking out into the water

peninsular

-s(ə-)lər 

-chə-lər

adjective

Etymology

from Latin paeninsula "peninsula," from paene- "almost" and insula "island" — related to insulate, isle, isolate