Entry Word: frontier

Function: noun

Meaning: 1 a region along the dividing line between two countries <the Apaches were once feared on both sides of the U.S.-Mexico frontier>

Synonyms border, borderland, march

Related Words no-manʼs-land

2 a rural region that forms the edge of the settled or developed part of a country <Alaska has been called Americaʼs last frontier>

Synonyms backwater, backwoods, bush, hinterland, up-country

Related Words country, countryside, sticks