peninsula has definitions from the field of geography
1
[ noun ] (geography) a large mass of land projecting into a body of water

Used in print

(Guy Bolton, The Olympians....)

When Napoleon 's ship had borne him to Elba , French wines had started to cross the Channel , the first shipments in a dozen war-ridden years , but the supplies had not_yet reached rural hostelries where the sweet wines of the Spanish peninsula still ruled .

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