Frontier

noun

/fɹʌnˈtɪə/

Word Frequency: 15.4

Definitions

1.nounThe part of a country which borders or faces another country or unsettled region

2.nounThe most advanced or recent version of something; leading edge.

"the frontier of civilization"

3.nounAn outwork of a fortification.

4.verbTo live as pioneers on frontier territory.

5.verbTo place on the frontier.

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