Frontier in a Sentence  🔊

Definition of Frontier

an area that has not been fully explored

Examples of Frontier in a sentence

The science fiction program begins with a description of space as the final frontier.  🔊

Because the scientists are working on genetic cloning, they are at the frontier of reproductive science.  🔊

The president hired explorers to travel across the country and map the uncharted frontier.  🔊

When the astronaut put his foot down, he was the first human to step into the frontier known as Mars.  🔊

As the hikers moved through the tropical forest, they hoped the area would remain an undeveloped frontier.  🔊

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