Definition

1. Noun:
   • An undeveloped field of study; a topic inviting research and development: The word "frontier" can refer to the extreme limit of understanding or achievement in a particular area of knowledge or activity, representing a new and promising area for exploration.
   • An international boundary or the area (often fortified) immediately inside the boundary: "Frontier" denotes a border between two countries or the region near such a border.
   • A wilderness at the edge of a settled area of a country: Historically, this refers to the outermost settled or developed region of a country, often seen as a place of opportunity and challenge.

Usage Examples

• Noun:
  • He worked at the frontier of brain science. (He conducted research in the most advanced and unexplored areas of neuroscience.)
  • They crossed the frontier into the neighboring country at dawn. (They passed the international border early in the morning.)
  • The individualism of the frontier in Andrew Jackson's day shaped American culture. (The independent spirit of the early American settlement regions was a defining characteristic.)

Advanced Usage

• "The final frontier": A metaphorical phrase, popularized by science fiction, referring to the ultimate limit of exploration, often space.

  • Space is often called the final frontier for human exploration.

• "Frontier spirit": The attitudes of courage, independence, and resilience associated with settling new lands.

  • The company's success was driven by a frontier spirit of innovation.

• "Frontier technology": Technology that is at the cutting edge, representing the latest and most advanced developments.

  • The conference focused on frontier technologies like quantum computing.

Variants and Related Words

• Frontiersman/Frontierswoman (n): A person, especially in American history, who lives on the frontier.

  • The frontierswoman was skilled in hunting and farming.

• Frontierless (adj): Without frontiers or boundaries.

  • The internet has created a frontierless world for information.

Synonyms

• Boundary: A line that marks the limits of an area.
• Border: The edge or boundary of something, or a part near it.
• Vanguard: A group of people leading the way in new developments or ideas.
• Pioneer region: An area that is among the first to be settled or developed.

Related Phrases

• Push back the frontiers: To extend the limits of knowledge or achievement.

  • This discovery pushes back the frontiers of medical science.

• On the frontier of: Actively involved in the most advanced part of a field.

  • She is a researcher on the frontier of renewable energy.

Related Idioms

• Beyond the frontier: In an unknown or unexplored area, either literally or metaphorically.
  • His theories were considered radical, coming from beyond the frontier of accepted science.

Noun

1. an undeveloped field of study; a topic inviting research and development
   • he worked at the frontier of brain science
2. an international boundary or the area (often fortified) immediately inside the boundary
3. a wilderness at the edge of a settled area of a country
   • the individualism of the frontier in Andrew Jackson's day