Definition

A border or area that is at the edge of a settled region, often representing a boundary between different countries or territories. It can also refer to an undeveloped area for exploration or research.

Example

The explorers ventured into the frontier to discover new lands.

Conversation

Have you ever thought about exploring the frontier of our national parks?

I haven't, but it sounds exciting!

There's so much nature out there that we haven't even discovered yet.

Totally! It must feel amazing to be on the edge of the frontier.

Synonyms & Antonyms

Root Explanation

Frontier → It is formed from "front" (from Old French *front*, meaning forehead or front) and "-ier" (a suffix indicating a person or thing related to). The word "frontier" originally referred to the border or the front part of a territory, indicating the edge of a settled area.

Memory Tip

Think of the 'front' as the leading edge of something, and '-ier' indicating a relation, so a frontier is the leading edge of a territory.

Visually Confused Words