frontier

Meanings

Noun

• The part of a country which borders or faces another country or unsettled region
• The most advanced or recent version of something; leading edge.
• An outwork of a fortification.

Adjective

• Lying on the exterior part; bordering; coterminous.

Verb

• To live as pioneers on frontier territory.
• To place on the frontier.

Related

Similar words

• marches; the border

Origin

• From Middle English frounter, from Old French fronter (whence Modern French frontière), from front.