Peninsula is a noun.
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
noun
Florida occupies an elongated peninsula in the southeastern part of the United States. It is 447 miles long from north to south.
The Iberian peninsula.
Balkan peninsula
The Kamchatka Peninsula is part of Russia. It juts out into the Pacific.
The Arabian Peninsula is part of the Middle East and Asia.
Florida is the largest peninsula.
The Jutland Peninsula is the western continental part of Denmark. The Jutland Peninsula also comprises the northernmost part of Germany
The Malay Peninsula is a peninsula located in Southeast Asia. The peninsula is mainly made up of a part of the territory of Malaysia, but the southern most tips of Burma and Thailand are also considered to be part of the peninsula. Singapore is also considered part of the peninsula since it is just off the coast of Malaysia.
The Antarctic Peninsula is part of the continent, yes.
You're thinking of the Sinai Peninsula, but it is still part of Egypt. Since the Suez Canal forms the border between Asia and Africa, the Sinai Peninsula is the only part of Egypt in Asia.
The Iberian peninsula is a part of Europe which contains Spain and Portugal, and which is the westernmost part of Europe.