heartland/ˈhɑːtlənd/EtymologyFrom heart (“(figuratively) centre, core, essence”) + land.heartland means Synonym of heart (“the seat of the affections or love”). Lexicurio rates it Distinctive — a strength score of 68 out of 100.nounSynonym of heart (“the seat of the affections or love”).Also in the plural form heartlands:; The interior part of a region, especially when contrasted with coastal parts or when regarded as particularly powerful or significant.“[R]ound the Pole all three powers lay claim to enormous territories which in fact are largely uninhabited and unexplored: but the balance of power always remains roughly even, and the territory which forms the heartland of each super-state always remains inviolate.”Also in the plural form heartlands:; In the geopolitical theory of the English geographer Halford John Mackinder (1861–1947): the interior of the world island comprising north-central Eurasia regarded as politically powerful.Also in the plural form heartlands:; Residential districts and planning areas outside the city centre; the new towns of Singapore collectively.“Those in the HDB [Housing and Development Board] heartland will be able to vote in the airconditioned comfort of their community centres […]”Also in the plural form heartlands:; The states in the centre of the United States, chiefly regarded as politically and socially conservative; also, the people living in such states collectively.Also in the plural form heartlands:; A region or part of a region particularly associated with or significant for a characteristic, such as an activity, a faith, support for a political party or other organization, etc.“The home counties are the Conservative heartland.”