settlement of the American frontier; settlement of the Old West
Historical term referring to the westward expansion and settlement of the American frontier, especially during the 19th century.
Life during the settlement of the American frontier was harsh.
This movie depicts the settlement of the Old West.
Compound of 西部 (seibu, 'western part') and 開拓 (kaitaku, 'reclamation' or 'pioneering'), referring specifically to the American frontier.