Mainland (noun)

The main landmass of a country or continent, as opposed to its islands or peninsulas.

Origin:

Early 17th century (denoting the main portion of a country): from main (adjective) + land.

Examples:

1. The mainland of Japan is made up of four main islands.
2. The mainland of Australia is the world's largest island.
3. Many people prefer to live on the mainland instead of on the island.
4. Tourists flock to the mainland's beaches during the summer months.
5. The mainland is home to the majority of the country's population.