|a narrow strip of land projecting into a sea or lake from the mainland|
|[C16: from Latin, literally: almost an island, from paene|
|usage The noun peninsula is sometimes confused with the adjective peninsular: the Iberian peninsula (not peninsular)|
|peninsula (pə-nĭn'syə-lə) Pronunciation Key
A piece of land that projects into a body of water and is connected with a larger landmass.
A body of land enclosed on three sides by water, jutting out from a larger body of land.