1. The principal or largest landmass of a country or continent, as opposed to its islands or territories
The mainlands of Europe are connected by land borders.
As terras continentais da Europa estão conectadas por fronteiras terrestres.
2. The continuous or primary land area in contrast to peninsulas or offshore regions
Trade routes between the mainlands and islands were crucial.
As rotas comerciais entre as terras continentais e as ilhas eram cruciais.